Approx. 11ct total lab-grown diamond weight
D–F colour · VS1+ clarity
Made to order — dispatched in around four weeks, hallmarked where required
✓ Secure checkout
✓ 14-day returns on standard pieces, and faulty pieces always covered · Returns & Refunds
✓ Read our reviews on Trustpilot
✓ Questions? info@thelabjewellers.com or tap WhatsApp
Lab-grown diamond quality
D–F colour · VS1 clarity or better
Every lab-grown diamond is D–F colour and VS1 clarity or better. Round brilliant lab-grown diamonds can receive a formal cut grade; fancy shapes are assessed through their proportions, polish, symmetry and overall make. Any piece whose centre stone, on its own, weighs 1.00ct or more includes an individual IGI grading report as standard. Total carat weight does not count towards this.
It begins with 117 stones and builds towards one. Cordelia is all lab-grown diamond and no separate chain, a complete rivière that gathers its weight and light at the centre front. You see the whole necklace, not the parts holding it together.
The round brilliant lab-grown diamonds graduate from about 2.3mm at the back to one 4.8mm, approximately 0.48ct lab-grown diamond at the centre front. Each stone sits within its own bezel-style setting, finished with a smooth metal rim. A secure clasp fastens discreetly at the back.
Cordelia puts the greatest presence exactly where people look. Its 117 lab-grown diamonds total approximately 11ct, graduating from about 2.3mm at the back to 4.8mm at the centre front. Every stone has its own smooth-rimmed setting, and no separate chain interrupts the design. Choose 14kt white, yellow or rose gold for the harder, more scratch-resistant gold, or 18kt in the same colours for more pure gold and a heavier feel. Each necklace is finished by hand.
Supplied as a complete necklace at 18 inches (46cm). Want it shorter or longer? WhatsApp us and we'll quote it.
Every piece is crafted to order in your chosen metal. Our usual timeline is around four weeks from order to dispatch, which includes UK hallmarking where required. More complex pieces may take slightly longer. We confirm the expected timeframe in writing before production begins.
Cordelia sits neatly at the base of the throat, with its largest lab-grown diamond at the centre front. Wear it alone above a lower neckline or against a plain high neck. The individual smooth-rimmed settings run back to a discreet clasp, so the graduated design remains the focus.
How many lab-grown diamonds are set in the Cordelia necklace?
Cordelia contains 117 round brilliant lab-grown diamonds with a total weight of approximately 11ct. The stones graduate from about 2.3mm at the back to 4.8mm at the centre front.
Does Cordelia need a separate chain?
No. Cordelia is supplied as a complete necklace. The individually set lab-grown diamonds form the necklace itself, and a secure clasp fastens discreetly at the back.
What does graduated rivière mean for the Cordelia necklace?
It means the lab-grown diamonds increase in size towards the centre front. Cordelia begins with stones of about 2.3mm at the back and builds to one 4.8mm, approximately 0.48ct lab-grown diamond at the centre.
Store separately in the pouch or box provided. Avoid contact with harsh chemicals, perfume, and chlorine. Clean gently with a soft cloth or mild soap solution. Remove before swimming, exercising, or sleeping. See our Materials & Care guide for full instructions.
Unsure on size, metal, or lab-grown diamond specification? Email us and we'll guide you to the right option before you order — we reply personally, within two working days.
All pieces are made to order. Sterling silver and gold pieces dispatch in around four weeks, which includes UK hallmarking where required. Every order is tracked and signed for, and UK delivery is free. See how your piece is made, plus our Shipping & Delivery and Returns & Refunds pages for full details.