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DETAILS & MATERIALS

The 18k marquise cut diamond necklace is a stunning piece that beautifully exemplifies contemporary elegance. Featuring a natural marquise-cut diamond, this necklace captures the light in a captivating way, creating a subtle brilliance at the neckline. The diamond is artfully suspended from a sculptural oval link chain crafted from 18ct solid gold, ensuring that the piece is not just visually striking but also made to last a lifetime.

This exquisite necklace is designed to transition effortlessly from everyday wear to special occasions, making it a versatile addition to any jewelry collection. The adjustable length feature allows for customization, ensuring a perfect fit for every wearer. Each piece is handmade in Portugal, reflecting a commitment to quality craftsmanship that is evident in every detail.

Highlights

  • Material: 18ct solid gold
  • Stone: Natural marquise diamond
  • Craftsmanship: Handmade in Portugal
  • Adjustable length: Tailored fit for comfort
  • Distinct design: Sculptural oval link chain

FAQ

Q: Is the necklace adjustable?

A: Yes, the necklace features an adjustable length for a customized fit.

Q: What type of stone is used in this necklace?

A: The necklace includes a natural marquise-cut diamond.

INFORMATION

18k Gold Crafted in solid 18k gold, this piece is made to last a lifetime — and beyond. Wear it every day, everywhere, without limitations. 

Diamonds Every diamond selected by CINCO is chosen for its clarity and brilliance — natural mined stones that elevate each piece to another level. Set by hand in Portugal by artisans with decades of experience.

Made in Portugal Designed and handcrafted in Portugal with our expertise and unique craftsmanship. All CINCO pieces are hallmarked for authenticity and certified by the INCM (where applicable).

The value of gold fluctuates daily. Check the current gold price here.

SIZE & FIT

gemstone 1 marquise-cut diamond size 0.3 cm finish polished weight 1.40 gr length 40 - 42.5 cm (adjustable) oval link chain with extension lobster clasp closure designed to sit elegantly at the neckline thickness 1 mm

JEWELRY TO LAST A LIFETIME

CERTIFIED INCM

FAQs

Please read our FAQs page to find out more.

How long will my order take to arrive?

Orders are usually prepared within 1–2 business days. Once your order has been dispatched, you’ll receive an email with tracking details. Delivery times vary by destination and will be shown at checkout. Personalized/ Engraved and On-Demand pieces may require additional preparation time, as indicated on the product page.

Can I return my order?

Yes. You may return your order within 14 days of delivery, provided the pieces are unworn, unaltered and returned in their original condition. You can use your preferred tracked courier or ask us to arrange a return service, with the cost deducted from your refund. Once your return reaches us, please allow 7–10 business days for the refund to be processed.

Does CINCO jewelry have a warranty?

Yes. Every CINCO piece is covered by a 3-year warranty from the date of delivery against manufacturing defects. Your invoice and order number serve as proof of warranty. The warranty does not cover loss, accidental damage, improper use, normal wear or the natural fading of gold plating. If you experience an issue, contact us with your order number and photos so our team can assess the piece.