Approx. 37.20ct total lab-grown diamond weight
D–F colour · VS1+ clarity
Made to order — dispatched in around four weeks, hallmarked where required
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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.
The room does not need to see Cassiopeia all at once. It follows the neckline, stone after stone, until the full scale of it becomes clear. A continuous row of round brilliant lab-grown diamonds creates the kind of presence that feels composed rather than crowded, with nothing interrupting the view.
Cassiopeia is built from 124 identical 4.00mm stones, all collet set to give each one its own defined place in the line. Their repeated size creates an even rhythm around the necklace, while the concealed box clasp preserves its continuous appearance. Altogether, the design carries approximately 37.20ct of lab-grown diamonds.
Cassiopeia surrounds the neckline with one complete, consistent line of lab-grown diamonds. The 124 round brilliant stones each measure 4.00mm, so its approximately 37.20ct total weight is carried in a deliberate repeated rhythm rather than centred in one place. Choose 14kt for the harder, more scratch-resistant gold, or 18kt for more pure gold and a heavier feel. White, Yellow and Rose Gold each change the mood without changing the design.
Supplied as a complete necklace at approximately 20.5 inches (52cm). 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.
Let Cassiopeia follow bare skin or a simple, open neckline, where its uninterrupted row can be seen from end to end. With 124 matching 4.00mm stones, it needs little beside it. Choose restrained earrings and keep other necklaces away from the line.
Are the stones in Cassiopeia all the same size?
Yes. Cassiopeia uses 124 identical round brilliant lab-grown diamonds, each measuring 4.00mm. Their consistent size creates the necklace's even, continuous rhythm and approximately 37.20ct total weight.
How does the necklace fasten?
Cassiopeia fastens with a concealed box clasp. It is designed to keep the line visually uninterrupted, so the 124 collet-set stones remain the defining feature around the necklace.
Is Cassiopeia made to order?
Yes. Cassiopeia is made to order in 14kt or 18kt White, Yellow or Rose Gold, and each piece takes around four weeks. If you have a question about the fit before you order, email us and we will be happy to help.
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.
