FREQUENTLY ASKED QUESTIONS

if you can't find your order confirmation email, please check your junk mail or spam folders. if that doesn't help, contact customer service at +351 915 780 641 or via email at customer@cinco-store.com , and we will be able to resend your order confirmation email.

we prepare orders quickly, and so we cannot guarantee that your request will be processed in time to proceed to the modification. however, please get in touch with our customer service team through the normal channels. we will do our best to accommodate your request.

yes we do, check product pages for gift wrapping options.

every time you place an order on our website, you will receive a confirmation email. if you don’t receive it, we recommend checking your spam folder. if you cannot find it, please get in touch with our customer service team through the normal channels.

orders are typically prepared for shipment within 48 hours. you can check the average delivery times [here].

please note that fine jewelry pieces, engraved items, and pre-order pieces have specific shipping timelines, which will be clearly indicated at checkout.

"pre-order" means you are looking at a product that is currently out of stock, but will be made just for you soon. on demand items are reserved and will be shipped first when back in stock.

CINCO is available online at www.cinco-store.com and exclusively in portugal at 10 boutique dos relógios stores — our only authorized retailer in the country. you can also shop CINCO online at boutique dos relógios.

to view all the physical locations where our items are available, click [here].

please check if your order has already been shipped and if you’ve received a tracking number. once you have it, you can track the delivery status directly on the carrier’s website — DHL or NACEX, depending on the service used.
also, confirm that your order is within the normal shipping period, taking into account any extended shipping times for gold or engraved pieces.
if you prefer, feel free to email us at customer@cinco-store.comfor further assistance.

VAT (23% tax) is included in product prices listed for all orders being shipped in portugal.

for orders being shipped outside portugal, corresponding VAT and taxes are included either in the product price or at checkout, depending on your shipping country.

yes. you can place an order that includes both on demand products and products that are in stock. products that are in stock will be shipped according to the pre-order delivery time.

if the piece you're looking for is currently out of stock, don't worry! it will be restocked soon, but we don't yet have an exact date.

remember, our items take time because they last a lifetime! our focus is not on selling fashion; it is on preserving a family heritage. when you buy CINCO, you are supporting a system that avoids mass production and respects sustainability values.

we recommend using the 'notify me' option on the product page — you'll receive an email as soon as the item is back in stock. you can also check our website and social media for alerts.

we accept amex, visa, mastercard, discover, american express, paypal and klarma. check out all our payment options here.

Yes, all transactions are encrypted with SSL security.

when you place an order on our website for an item that is not immediately available [on demand], your credit or debit card will be authorized and charged for the full amount of your purchase.

from time to time we may offer promotional codes, either available on our website or with selected partners. if you have a promo code, feel free to use it at checkout. note that our promo codes may expire and may need to be used within a specific time frame. it is not possible to accumulate promotional codes or combine them with website promotions.

Every CINCO piece is crafted in 925 sterling silver or 18k gold-plated 925 sterling silver — precious, lasting materials chosen for their quality, wearability, and timeless finish.

All our jewelry is officially certified by the INCM (Portuguese Mint and Assay Office), guaranteeing authenticity, material traceability, and compliance with the strictest European standards. No nickel. No cadmium. No lead. No hidden alloys.

Our pieces are designed and handmade in Portugal — built to outlast trends, seasons, and fast fashion.

Every CINCO piece is designed and handmade in Portugal, by skilled Portuguese jewelers with generations of craft behind them.

Our production follows strict quality controls at every stage — from material sourcing to finishing — and each piece is officially certified by the INCM (Portuguese Mint and Assay Office), ensuring full traceability of every component, including solder.

Made in Portugal. Made to last.

Yes. All CINCO pieces are covered by a 3-year warranty (extra) of the European consumer law, applicable to manufacturing defects verified upon physical inspection of the piece.

Your proof of warranty is your order invoice and order number, which are included with every order. There is no separate warranty card — simply keep your invoice safe.

Please note that the warranty does not cover damage resulting from normal wear, improper use, accidental loss, or the natural malleability of fine metals — including clasp adjustment, which is an expected characteristic of articulated jewelry mechanisms over time.

If you believe your piece has a manufacturing defect, please contact us at customer@cinco-store.com with your order number and photos of the piece. We assess every situation individually and with care.

Sustainability and ethics are built into how we work, not added as an afterthought.

Every CINCO piece is handmade in Portugal using 925 sterling silver and 18k gold-plated finishes — durable, precious materials designed to last a lifetime, not a season. We believe the most sustainable piece of jewelry is one you keep, wear, and pass on.

Our production is certified by the INCM (Portuguese Mint and Assay Office), ensuring full traceability of every component — including solder. No nickel, no cadmium, no lead, no hidden alloys. What you wear is exactly what we say it is.

We work with skilled Portuguese jewelers, supporting local craft and traditional manufacturing expertise. Short supply chains, transparent production, and pieces built to outlast fast fashion — that's the CINCO standard.

Gold plating is a finish, not a solid metal — and like all finishes, it will naturally wear over time. How long it lasts depends on how often you wear the piece, how it's stored, and how it's cared for.

With proper care — avoiding contact with water, perfumes, creams, and harsh surfaces — your CINCO gold-plated pieces can maintain their finish for years. We use 24k gold plating over 925 sterling silver, which gives a richer, more durable result than standard plating.

To keep your pieces looking their best, we recommend:

• Putting jewelry on last, after perfume and skincare
• Removing pieces before swimming, showering, or exercising
• Storing in a dry place, ideally in your CINCO pouch or box
• Gently polishing with a soft cloth

If your piece loses its finish over time, this is considered normal wear and is not covered under warranty. However, some pieces can be re-plated — contact us at customer@cinco-store.com to find out more.

Like any piece of fine jewelry with an articulated mechanism, the clasps on our hoops may need a small adjustment over time, especially with frequent wear. This is normal behaviour for fine jewelry and does not indicate a manufacturing defect.

We recommend checking the clasp alignment before wearing your piece. If you notice the clasp isn't closing as firmly as usual, feel free to reach out — we'll be happy to guide you or arrange an adjustment.

Clasp adjustment is not covered under warranty, as it results from natural wear and the inherent malleability of fine metals — not from a manufacturing defect.

925 sterling silver and gold-plated finishes are precious, slightly malleable materials. With regular use, articulated mechanisms such as hoop clasps may shift slightly and require realignment. This is an expected characteristic of fine jewelry, not a fault.

To extend the life of your pieces, we recommend handling clasps gently, avoiding excessive force, and checking alignment periodically. If you need guidance on how to adjust your clasp, our team is happy to help.

We're truly sorry to hear this — losing a piece of jewelry is always frustrating, and we take every situation seriously.

However, it's important to note that the loss of a piece cannot, on its own, be attributed to a manufacturing defect. Clasps on earrings, necklaces, and bracelets are precision mechanisms that may require periodic adjustment with regular use — this is a normal characteristic of fine jewelry, not a fault.

For a warranty claim to be assessed, the piece itself must be available for physical inspection by our team. Without the item, we are unable to determine the cause of loss or confirm the presence of a defect.

If you still have the piece or a matching piece from the same pair, please contact us at customer@cinco-store.com and we will do our best to assist you. We assess each situation individually and always aim to find a fair resolution.

With the right care, your CINCO jewelry will retain its beauty for years to come. Here's what you need to know by material:

925 Sterling Silver Our sterling silver pieces feature a rhodium-plated finish that helps protect against tarnishing. However, silver is a living metal — exposure to salty air, humidity, sulfur-containing products (such as rubber bands or certain papers), perfumes, body oils, and cosmetics can accelerate oxidation over time. This is normal, not a defect.

To care for your silver pieces:

• Put jewelry on last, after perfume and skincare
• Remove before swimming, showering, or exercising
• Store in a dry place, in your CINCO pouch or box
• Clean regularly with a soft, dry cloth
• For deeper cleaning, use mild soap with warm water and a soft brush, then rinse and pat dry

Gold-Plated 925 Sterling Silver Gold plating is a finish that will naturally wear over time with use. Exposure to water, perfumes, makeup, hairspray, body oils, and household products will accelerate this process. Please note that skin pH can also affect how gold-plated pieces age — this varies from person to person and is not a manufacturing defect.

To extend the life of your gold-plated pieces, follow the same care guidelines as above — and avoid any prolonged contact with moisture or chemicals.

Solid Gold (18k) Our solid gold pieces are the most resilient — they won't fade or tarnish. If you notice any surface residue, gently buff with a soft, non-abrasive cloth. For a deeper clean, soak briefly in warm water with a drop of soap-free detergent, scrub lightly with a very soft brush, and pat dry.

Re-plating & Polishing Silver and gold re-plating services are available. Contact us at customer@cinco-store.com for more information.

Every CINCO order arrives beautifully packaged — your piece comes in a signature CINCO pouch, ready to gift from the moment it arrives.

If you're sending directly to someone special, you can add a personalized message at checkout and we'll make sure it feels like a gift worth remembering.

Getting the right fit makes all the difference. We've put together a complete size guide to help you find your perfect ring size — including how to measure at home and how our sizing compares to international standards.

👉 View our Size Guide

If you're still unsure, feel free to reach out at customer@cinco-store.com — we're happy to help you find the right fit.

Finding the right length is key to how a piece sits and feels. Our size guide covers bracelet and necklace measurements, with tips on how to measure at home and how different lengths typically wear.

👉 View our Size Guide

Not sure which length suits you best? Contact us at customer@cinco-store.com — we'll help you choose based on your measurements and the look you're going for.

Yes. All CINCO jewels are produced in Portugal and fully comply with the European Union's REACH Regulation — the world's most demanding legal framework for articles in contact with the skin. This regulation sets precise limits for the release of potentially harmful substances, such as nickel, and is independently enforced.

In Portugal, that enforcement is carried out by the INCM Assay Office, which mandatorily verifies and certifies the composition of each piece before it reaches the market — guaranteeing that the precious metal content and alloy composition meet legal standards.

Clinical evidence confirms the real-world impact of this regulation: since the introduction of European nickel restrictions, the prevalence of nickel allergy in the European population has decreased — suggesting that where legislation is enforced, it works.

Buying a certified jewel is not just a question of authenticity. It is a health decision.

ECHA / REACH Regulation, Annex XVII — European regulatory framework

It means that the metal alloy composition of CINCO jewels is controlled, verified and — at critical points — more restrictive than most markets in the world.

Silver jewellery is always an alloy: pure silver is too malleable for everyday use, and the other metals that make up the remaining 7.5% make all the difference for the person wearing it. The main risk in unregulated jewellery is nickel — the most common cause of allergic contact dermatitis worldwide. Clinical studies show that exposure to nickel through jewellery in direct and prolonged contact with the skin has sensitised between 12% and 15% of women and 1% to 2% of men in Europe.

European regulation is already among the most demanding in the world, restricting nickel release to the skin to very precise levels. But in Portugal, the bar is set even higher. Portuguese legislation is explicit: the use of hazardous substances in precious metal articles — namely lead, cadmium and nickel — is prohibited. In practice, this means that a jewel certified by the INCM cannot contain nickel in its composition. This is not a quality choice. It is a legal obligation.

What is not always easy to find, even in Portugal, is a brand that fully respects this rule from raw material to finished product. CINCO is entirely produced in Portugal, under INCM certification, which ensures that every piece meets these requirements without exception. No imported components of unknown origin, no unverified alloys, no shortcuts.

Ahlström et al. (2019), Contact Dermatitis, Wiley RJOC Lei n.º 98/2015 — APIO

No. While European regulation restricts how much nickel a jewel can release to the skin, Portuguese law goes further. Under the RJOC — the legal framework governing all jewellery certified by the INCM — the use of nickel in certified precious metal articles is explicitly prohibited.

This means that when you buy a piece hallmarked by the INCM, you are not just buying a jewel that meets European standards. You are buying one that meets a stricter national standard that most markets in the world — including most of Europe — do not apply.

RJOC Lei n.º 98/2015 — APIO / INCM

Yes — and the data is unambiguous.

Studies show that jewellery from Asia presents excessive nickel release in 34.5% of cases, and from North America in 31.1% — compared to 11.3% in Europe, already reflecting the positive impact of EU regulation.

Beyond nickel, unregulated jewellery from outside the EU is frequently found to contain cadmium and lead above legal limits. In 2024, South Korean authorities tested 144 products from major fast-fashion platforms and found multiple violations of legal safety standards — including substances at levels far exceeding permitted limits. While these findings covered a range of product categories, they reflect a broader pattern of inadequate safety controls in discount retail supply chains, including jewellery.

European market surveillance projects have consistently flagged non-EU imported costume jewellery as one of the highest-risk product categories for harmful substance violations. The difference is not aesthetic. It is structural: certified jewellery undergoes mandatory independent verification before reaching the market. Most imported jewellery does not.

Further reading: Spreckelsen et al., 2025 — Nickel Allergy and Piercings: A Systematic Review Le Monde / AFP, 2024 — Toxic Substances in Shein and Temu Products France 24, 2024 — Seoul Authorities Find Toxic Substances in Shein and Temu

Yes, and there is robust clinical evidence to prove it. A study drawing on data from 180,390 patients across four European countries concluded that there was a measurable reduction in the prevalence of nickel allergy in young women, coinciding with the introduction of European nickel regulation — with a causal effect of the regulatory intervention being the most likely explanation.

But Portugal goes further than the European baseline. While EU regulation restricts the release of nickel from jewellery to the skin, Portuguese law explicitly prohibits the use of nickel in certified precious metal articles altogether. This is not a minor distinction — it means that jewellery certified by the INCM is held to a stricter standard than what is required in most other European countries, let alone the rest of the world.

Choosing a piece of CINCO jewellery, certified in Portugal, is one of the most informed decisions a consumer can make.

Thyssen et al. (2013), British Journal of Dermatology, PubMed PMID: 23909687 RJOC Lei n.º 98/2015 — APIO / INCM

In the vast majority of cases, yes. CINCO jewels are produced in Portugal in 925 Sterling Silver, certified by the INCM Assay Office and fully compliant with the European Union's REACH Regulation — the world's most demanding regulatory framework for articles in contact with the skin. Clinical evidence indicates that where this legislation is enforced, the prevalence of nickel allergy in the European population has decreased.

Choosing a certified jewel, produced under European regulation, is already an informed health decision — particularly when compared with uncertified alternatives imported from outside the EU.

For cases of very specific sensitivity or a history of severe allergic reactions, we always recommend consulting a dermatologist beforehand.

The difference is not only in the materials — it is structural.

Certified precious metal jewellery, such as CINCO's 925 sterling silver pieces, undergoes mandatory independent verification by the INCM before reaching the market. Its composition is legally defined, tested and hallmarked. The alloy is controlled. The absence of prohibited substances — including nickel, lead and cadmium — is verified.

Costume jewellery made from non-precious materials has no equivalent certification requirement. While EU regulation technically applies to all jewellery sold in Europe, there is no mandatory pre-market testing for costume jewellery. Enforcement is reactive, not preventive.

A 2021 study published in Science of the Total Environment analysed 80 items purchased from a discount jewelry store and found cadmium in 40% of them — with 25% exceeding established safety thresholds. In 2024, South Korean authorities tested 144 products from some stores found multiple violations of legal safety standards, reflecting a broader pattern of inadequate safety controls in fast-fashion and discount retail supply chains.

When you buy a CINCO piece, you know exactly what you are wearing. With uncertified jewellery, you often do not.

Further reading: Kern, Boron & Weidenhamer, 2021 — Cadmium in Discount Jewelry Le Monde / AFP, 2024 — Toxic Substances in Shein and Temu Products

Not only can you — it is one of the most thoughtful decisions you can make. Precisely because CINCO jewels are safe, certified and built to last, they are also the first jewels that make sense to give to a child.

The question of safety in children's jewellery is more serious than most people realise. A 2021 study published in Science of the Total Environment found cadmium in 40% of items tested from a discount jewelry store — with levels that can pose serious health risks if pieces are handled or mouthed by children. Cadmium is a toxic heavy metal with no safe level of exposure. It is not found in CINCO pieces.

CINCO jewels are produced in Portugal in 925 sterling silver, certified by the INCM, with full traceability of every component. What goes into your child's jewel is documented, verified and legally controlled.

But beyond safety, there is something more here. CINCO is a brand that mothers wear, that daughters admire, and that creates a shared language between them. Giving a CINCO jewel to a child is not just a gift — it is an introduction to quality, to objects with meaning, to pieces that are kept rather than discarded. In an age when everything is disposable, there is something profoundly different about growing up knowing how to recognise the value of something real.

Further reading: Kern, Boron & Weidenhamer, 2021 — Cadmium in Discount Jewelry PubMed — Cadmium toxicity and health effects

Yes — and so do we. Every CINCO piece is fully traceable, from the 925 sterling silver base to the solder used to join each component. Every metal in every piece has been verified and documented. No nickel. No hidden alloys. No surprises.

Because caring for your jewelry starts before it ever reaches you.

Furtado & Pereira, Lda., Rua Casa Branca, 97, 3030-109 Coimbra, NIF PT515204323, finance@cinco-store.com.

send us an email at customer@cinco-store.com or call +351 915 780 641 [we will answer from monday to friday, 9am to 6pm, lisbon hour]. for more information about our customer service, click here.

Contact us: customer@cinco-store.com | +351 915 780 641
Monday-Friday, 9AM-6PM WET

The most important thing to understand about jewelry care is simple: real materials have real needs. And meeting them takes less effort than most people think.

The three habits that matter most

Wear it right. Put your jewelry on last — after perfume, cream, hairspray and makeup. Take it off first — before showering, swimming, exercising or sleeping. This single habit protects your pieces more than anything else.

Clean it regularly. A soft dry cloth after each wear removes the oils, sweat and residue that accumulate on the surface and accelerate tarnishing. A quick wipe takes ten seconds and makes a lasting difference.

Store it properly. Keep each piece individually in your CINCO pouch, away from humidity, direct sunlight and other metals. The pouch is made from a soft jewelry-grade cloth that protects the surface and keeps moisture and air out between wears.

Know your material

Different materials have different needs:

• 925 sterling silver — can be cleaned with mild detergent, warm water and a soft toothbrush for a deeper clean
• Gold-plated silver — soft dry cloth only, never a polishing cloth or abrasive materials
• 18k and 19.2k solid gold — the most resilient of all, will never fade, clean with detergent-free soap and warm water

When in doubt, restore

If your silver tarnishes or your gold plating wears over time, it is not the end of the piece — it is simply time for care. A silver polishing cloth restores shine in minutes. Our gold plating renewal service restores your piece to its original finish whenever it is needed.

Real jewelry is made to last. It just needs to know you care.

Gold-plated pieces ask a little more attention than solid gold — but the habits are simple and make a significant difference.

What to avoid

Gold plating is a layer, and layers wear. The fastest way to shorten its life is repeated contact with:

• Water — showering, swimming, washing hands
• Perfume, hairspray and body oils
• Sunscreen and makeup
• Household cleaning products
• Sweat, particularly in areas of constant friction against the skin

What to do daily

• Put your piece on last — after all products are fully absorbed
• Take it off first — before any contact with water or chemicals
• Wipe gently with a soft dry cloth after each wear to remove oils and residue
• Store in your CINCO pouch individually, away from other pieces

What to do when cleaning

Use only a soft, dry cloth. Never use a silver polishing cloth, abrasive materials or detergents on gold-plated pieces — they will remove the plating. If the piece needs more than a wipe, dampen the cloth very slightly with clean water and dry immediately and thoroughly.

When the finish wears

It will, eventually — and that is normal. Gold plating is not permanent, but it is renewable. When your piece loses its finish, our gold plating renewal service restores it to its original condition. Contact us at customer@cinco-store.com and we will take care of the rest.

Regular cleaning is one of the simplest things you can do to keep your pieces looking their best. The method depends on what your piece is made of.

925 sterling silver

Clean regularly with a clean, soft cloth after each wear to remove oils and residue. For a deeper clean, use a mild detergent with warm water and a very soft toothbrush, scrubbing gently in small circular motions. Rinse thoroughly with clean water and dry completely with a soft cloth before storing.

A silver polishing cloth will restore shine quickly if tarnishing has already occurred.

Gold-plated silver

Use only a soft, dry cloth — gently and without pressure. Never use a silver polishing cloth on gold-plated pieces as it will remove the plating layer. Avoid detergents, abrasive materials and prolonged contact with water.

18k and 19.2k solid gold

Solid gold is the most forgiving of the three. Mix a few drops of detergent-free soap with warm water, soak one piece at a time for a few minutes, then clean gently with a very soft brush. Rinse with clean water and dry with a soft non-abrasive cloth. Solid gold will never fade — a gentle clean is all it ever needs.

Whatever the material, always dry your pieces completely before storing them in your CINCO pouch. Moisture trapped against metal is the one thing no jewelry benefits from.

The honest answer: more often than most people do.

Jewelry is made to be worn — but a few specific moments will shorten its life considerably if you keep it on. Make a habit of removing your pieces before:

• Showering or bathing — water and soap accelerate tarnishing and wear gold plating faster than almost anything else
• Swimming — chlorinated pools and salt water are particularly damaging to both silver and gold plating
• Applying products — perfume, hairspray, sunscreen, body lotion and makeup should always go on before your jewelry, never after
• Sleeping — friction against fabric weakens delicate settings and bends fine chains over time
• Exercising — sweat is acidic and accelerates oxidation, and impact sports risk physical damage
• Cleaning — household products and rubber gloves can cause immediate and irreversible discolouration

The simplest rule to remember: your jewelry goes on last and comes off first.

Store it in your CINCO pouch each time — it takes ten seconds and makes a lasting difference.

Storage is the most underestimated part of jewelry care — and one of the most important.

The right environment keeps your pieces exactly as they should be between wears. The wrong one accelerates tarnishing, scratches finishes and tangles chains in ways that are hard to undo.

A few rules that make a real difference:

• Store each piece individually — metal against metal causes scratches
• Use the CINCO pouch that came with your order. It is made from a soft jewelry-grade cloth that protects the surface, absorbs moisture and keeps air and light out
• Keep your pieces away from the bathroom — humidity and steam are among the fastest accelerators of tarnishing
• Avoid direct sunlight and heat sources
• Keep chains unclasped and laid flat to prevent tangling

The CINCO pouch is not just packaging — it is the simplest and most effective storage solution for your piece, designed to last as long as the jewelry itself.

The butterfly back has loosened. With regular use, the small metal butterfly that holds the earring in place can widen slightly over time. Simply pinch it gently back together with your fingers or a pair of tweezers — it should grip again immediately.

The post has bent slightly. If the earring post is even slightly off-angle, the butterfly won't catch properly. Check that the post is straight before wearing.

The earring needs cleaning. A build-up of product, skin oils or oxidation on the post can prevent a clean lock. Clean the post gently with a soft cloth before wearing.

If the issue persists after trying these steps, contact us at customer@cinco-store.com — we will assess the piece and advise on the best solution.

Tarnishing is natural — but it is largely preventable with a few consistent habits.

The biggest accelerators are moisture, air and chemical products. To slow the process down significantly:

• Put your jewel on last — after perfume, cream and hairspray
• Take it off first — before showering, swimming or sleeping
• Clean gently with a soft cloth after each wear
• Store each piece individually in the CINCO pouch, away from humidity and direct sunlight

One advantage that CINCO pieces have: our 925 sterling silver includes a rhodium plating layer that already protects the silver from exposure and significantly reduces long-term tarnishing compared to standard sterling silver.

If tarnishing does occur, it is not damage — it is just silver being silver. A soft polishing cloth will restore the shine in minutes.

Tarnishing is natural — but it is largely preventable with a few consistent habits.

The biggest accelerators are moisture, air and chemical products. To slow the process down significantly:

• Put your jewel on last — after perfume, cream and hairspray
• Take it off first — before showering, swimming or sleeping
• Clean gently with a soft cloth after each wear
• Store each piece individually in the CINCO pouch, away from humidity and direct sunlight

One advantage that CINCO pieces have: our 925 sterling silver includes a rhodium plating layer that already protects the silver from exposure and significantly reduces long-term tarnishing compared to standard sterling silver.

If tarnishing does occur, it is not damage — it is just silver being silver. A soft polishing cloth will restore the shine in minutes.

We recommend taking it off — and here is why it matters.

Water itself is not the enemy. But the combination of water, soap, shampoo, conditioner and steam that comes with a shower is one of the fastest ways to accelerate tarnishing on silver and wear down gold plating. Salt water and chlorine are even more damaging — both react directly with the metals in your piece and will visibly shorten the life of the finish.

Solid 18k and 19.2k gold pieces are more forgiving and can handle occasional water contact. But for 925 sterling silver and gold-plated pieces, the habit of removing them before any water exposure is the single most effective thing you can do to preserve them.

It takes ten seconds. Your pieces will last years longer for it.

Cleaning silver at home is simple — and something you should do regularly, not just when tarnishing appears. A little maintenance goes a long way.

For everyday cleaning

After each wear, wipe your piece gently with a soft, dry cloth. This removes the oils, sweat and residue that build up on the surface and cause tarnishing over time. It takes seconds and makes a significant difference.

For a deeper clean

Mix a small amount of mild dish soap with warm water. Using a very soft toothbrush, clean the piece gently in small circular motions, paying attention to any detailed or textured areas where residue tends to accumulate. Rinse thoroughly under clean running water and dry completely with a soft cloth before storing.

Never leave silver pieces wet — moisture trapped against the metal accelerates tarnishing.

If tarnishing has already occurred

A soft silver polishing cloth will restore the shine quickly and effectively. Rub gently in straight lines rather than circular motions for the best result.

What to avoid

• Toothpaste — too abrasive and will scratch the surface
• Baking soda mixtures — effective but too harsh for regular use and damaging to plated pieces
• Ultrasonic cleaners — not suitable for plated or stone-set pieces
• Paper towels or rough cloths — will scratch

One thing to remember

Our 925 sterling silver pieces include a rhodium plating layer that already protects against tarnishing and reduces the need for frequent polishing. With proper daily care, a deep clean should rarely be necessary.

Yes — and we can prove it.

All CINCO pieces are produced in 925 sterling silver, certified by the INCM under Portuguese law, which explicitly prohibits the use of nickel in certified precious metal articles. This goes further than the European REACH Regulation, which already sets the world's most demanding limits for nickel release in jewellery worn against the skin.

Every component of a CINCO piece — including the solder used to join each part — is fully traceable and nickel-free. Not because it is a marketing choice. Because it is a legal obligation that we take seriously at every stage of production.

Clinical studies confirm that the prevalence of nickel allergy in Europe has decreased precisely where this kind of regulation is enforced. Choosing a CINCO piece is not just an aesthetic decision — it is an informed one.

If you have a history of severe allergic reactions, we always recommend consulting a dermatologist beforehand.

Because we thought about what happens after you open it.

Paper boxes are beautiful for five minutes — then they go in the bin. Our pouches are made from a soft jewelry-grade cloth that does exactly what a storage pouch should do: protect your piece from scratches, absorb moisture and keep it away from light and air.

It is not just packaging. It is the first act of care your jewel receives — and the one that continues every time you put it away.

One less box in the bin. One more reason to keep your jewelry exactly as it should be.

practically, yes! however, due to global conflicts and specific customs regulations, there are a few exceptions. click here to see the full list of locations we ship to.

we ship internationally to all European countries.

EU Zone 1: 3-5 working days

EU Zone 2: 4-6 working days Processing time: 1-2 business days

• Portugal & Spain: 1-3 working days
• EU Zone 1: 3-5 working days
• EU Zone 2: 4-6 working days Processing time: 1-2 business days

For EU countries, no additional customs fees apply. For non-EU countries, customs duties may apply depending on your country's regulations.

Shipping costs vary by destination. Check our shipping policy for detailed rates.

Contact us at customer@cinco-store.com and we'll help track your order.

orders over €150 qualify for free shipping. the shipping cost for other orders varies depending on the shipping zone. you can find detailed information on shipping rates here.

read about the regular shipping and delivery times here.

yes, parcels must be delivered personally to the recipient. if you would like the order to be delivered to someone else, please inform both us and the courier in advance.

to avoid any risk of loss or theft, we strongly advise against authorizing delivery to unattended locations. CINCO is not responsible for parcels left at the door, in mailrooms, or in building delivery areas.

if you have chosen home delivery and you were not at home at the time of delivery, we suggest you contact us and we will get in contact with the carrier to sort out the situation. the order will be delivered to the specified address, any error in the address will be the responsibility of the customer. if you have not received your order, but it is listed as delivered, we suggest you contact us and we will check with the delivery company.

we are not responsible for any taxes or duties that may apply to international orders. however, no duties or taxes will apply to orders delivered to countries within the european union and the united kingdom.

if you choose to refuse your order, you will be responsible for any duties, taxes and/or customs fees that may be incurred, as well as the cost of returning the package to our portuguese address. this amount will be deducted from your refund.

we believe in hassle free returns, providing a simple, process for customers to return products without, or with minimal, difficulty. Key features include simplified process, quick processing times, no question asked and no hidden fees.

You can request a return within 14 days of receiving your order. Requests submitted after this period will not be accepted.

Yes. Eligible items can be exchanged directly through our Returns Portal. Exchanges also receive an additional 5% credit.

Yes. You may choose store credit instead of a refund and receive an additional 10% credit on the returned item's value.

Simply visit our Returns Portal and enter your order details:
https://pt.cinco-store.com/apps/returns-portal

If you choose our prepaid return label, the return shipping fee will be deducted from your refund:

• Portugal and Spain: €5
• Europe: €20
• International: €30

Refunds are processed once your return has been received and inspected by our team. The refund will be issued to your original payment method.

We recommend returning your item in its original packaging or a suitable alternative that protects the jewelry during transit.

Please include a copy of your order confirmation or invoice inside the parcel and you RMA (Return Merchandise Authorization) number.

The RMA (Return Merchandise Authorization) number is generated during the return process. Please ensure it is clearly visible on the outside of your parcel to help us identify your return.

At the moment, collection scheduling is not available. Returned parcels must be dropped off at the designated carrier location.

No. Only one return or exchange request can be submitted per order.

Returns received without a visible RMA number may experience significant processing delays and, in some cases, may not be identifiable.

Unfortunately, returns and exchanges cannot be accepted more than 14 days after delivery.

you can download here our printable ring size guide.

You can check our earrings size guide.

klarna is a swedish payment service provider that takes end-to-end responsibility for your payment. klarna enables more than 200,000 online stores to be paid. more than 85 million consumers around the world trust klarna to handle their payments in a secure way.

payment method available in the following countries: austria, belgium, finland, france, germany, greece, ireland, italy, netherlands, portugal and spain.

paying later in 3 interest-free installments allows you to spread the cost of your purchase over 3 equal payments. payment for each installment will be automatically charged to the debit or credit card you provide at checkout. your first installment will be collected when your order is confirmed by CINCO (FURTADO E PEREIRA, LDA) and installments 2 and 3 will be scheduled 30 and 60 days later, respectively. you can always monitor your payment schedule in the klarna app.

once your order is confirmed, you'll receive an email from klarna within two days with payment instructions. you then have 30 days to try on your order and pay only if you're satisfied. pay online at your convenience, at no extra cost. you can pay by credit or debit card in klarna.app or by logging in to www.klarna.com/uk.

you must be at least 18 years old to use pay later. while this option is widely available, pay later is subject to your financial circumstances. if you choose to pay later, our assessment will not affect your credit rating. although pay later is widely promoted, it is not always available. the pay later payment option is automatically generated by algorithms based on a number of factors, including address details, cardholder details, order amount, online store, previous order history and item availability.

Klarna is unique and offers Pay Later based on a number of factors such as order value, previous order history and item availability. If you are 18 years of age or older, you can improve your chances of being offered pay later by providing your full name and accurate address information, and by shipping to your registered billing address. all orders are reviewed on an individual basis. just because you have been accepted for a klarna payment method before does not mean that it will be offered for every order, and if it is declined, it does not mean that it will be declined for all future orders.

if you want to make a purchase with klarna using pay later, you'll need to provide your mobile phone number, email address, current billing address, and a debit or credit card. a mobile phone number is required in case we need to contact you. all communications will be sent to your email address. it's very important that you give us the correct information, otherwise you will not receive your payment schedule and any updated order information.

klarna may perform so-called unrecorded inquiries (or soft credit searches), which do not affect credit scoring and are only visible to you and klarna, but not to other lenders. neither Klarna nor CINCO (FURTADO E PEREIRA, LDA) will run any credit reports against you that could affect your credit score.

yes. just go to the klarna app or log onto Klarna.com/uk and pay off early.

you can pay immediately with a debit or credit card at checkout, or you can use our pay later in 30 days payment option, which allows you to pay for the goods with a credit or debit card as soon as you receive them. you can always track your outstanding payments in the klarna app. payment for your pay later in 3 interest-free installments is automatically debited from the debit or credit card you enter at checkout. the first payment is taken when the order is confirmed. the second and third installments will be collected 30 and 60 days after the first installment, respectively. you can monitor your payment schedule at any time in the Klarna app.

once CINCO (furtado e pereira, lda) has accepted your cancellation/return, klarna will cancel any future scheduled payments and refund any amounts due. the return will be reflected in the klarna app immediately.

klarna will automatically attempt to collect your payment for your pay later purchase at CINCO (FURTADO E PEREIRA LDA) from the debit or credit card you entered at the checkout. If we are unable to collect your payment on the scheduled due date, klarna will make another automatic payment collection attempt two days later. If this final payment attempt fails, klarna will issue a statement for the full outstanding order amount, which will be due 15 days later. klarna will notify you when a payment is due two days before it attempts to collect your payment, and you can always monitor the due date in the klarna app at your convenience. your credit score will not be affected by using klarna's pay later product, even if you have not paid on time.

klarna will notify you via email and push notification from the klarna app when a payment is due and when it has been successfully collected, or in the unlikely event that your payment fails. if a payment has been collected but you have not received the payment confirmation, you can always check the status of your order and payments in the klarna app or by logging in at www.klarna.com/uk.

as soon as the store has registered your cancellation or your return, the refund will be processed within 5-7 business days.

in order to be able to offer you klarna's payment methods, we may transfer your personal data in the form of contact and order details to klarna during the checkout process so that klarna can assess whether you qualify for its payment methods and tailor those payment methods to you. the personal data you provide will be processed in accordance with klarna's own privacy policy.

please contact the Klarna's Customer Service.