Our Precious Materials

The house standard, and what all but one design in the collection is offered in. 18K is 75% pure gold by weight, alloyed for strength — a deeper, warmer colour than lower karats and a noticeably more substantial weight in the hand. Gold throughout, not a surface: it can be resized, repaired and re-polished indefinitely, and it will outlast you. Our gold is recycled.

White, yellow and rose are the same 18K gold, alloyed differently to change the colour — not different qualities or purities. Yellow is alloyed mostly with silver and copper; white with palladium or silver, usually finished with a thin rhodium plating for brightness, which can be re-plated after years of wear; rose takes its blush from a higher proportion of copper. Choosing between them is a style decision and nothing else: the stone's cut, colour, clarity and carat are identical across the three.

Offered on selected designs rather than across the collection. 14K is 58.5% gold: a slightly lighter tone, a harder alloy, and a sensible choice for a piece that will be worn every day without coming off. 9K is 37.5% gold — lighter again in both colour and price, and the most scratch-resistant of the three. Both are solid gold throughout and carry the same workmanship warranty as 18K; each product page states the karats that design is made in.

Available on a small number of designs, and the most durable metal we set in. Platinum is naturally white — it does not fade and never needs re-plating, unlike white gold — and it is dense, so the same ring in platinum has a weight you feel immediately. With wear it develops a soft patina, a matte sheen that many prefer and that a jeweller can polish back to high shine whenever you want.

A layer of 18K gold over a solid 925 sterling silver base, in white, yellow or rose. Vermeil is a genuine precious-metal piece — silver underneath, gold on top, no base metals — and it is what makes scale affordable: a tennis bracelet in vermeil costs a fraction of the same design in solid gold and looks identical when new.

The gold layer does wear. With heavy daily use, and fastest at high-friction points — the underside of a ring, the clasp of a bracelet — it thins gradually over years. That is a characteristic of vermeil rather than a manufacturing fault, and it is the one thing vermeil does that solid gold does not, which is why we say it plainly on every vermeil page rather than in a footnote. Keeping it away from moisture, perfume and friction slows it considerably. Vermeil pieces carry the workmanship warranty against manufacturing defects; wear of the gold finish is not a defect and is not covered.

Every product page states which of the two it is — solid or vermeil — and so does your certificate. Some designs are offered in both.

Chemically, physically and optically identical to a mined diamond — the same carbon crystal, grown above ground under the conditions that form one below it. Not a simulant and not a substitute: a diamond, with a different address. Every lab-grown diamond we set is graded by IGI for cut, colour, clarity and carat, and the report travels with your piece. It is what lets us set a two-carat centre stone at a price a mined half-carat would command.

Formed over billions of years and set on request across the collection. A natural stone is valued for its rarity and its provenance rather than for anything you can see next to a lab-grown one of the same grade — the two are indistinguishable to the eye, and the certificate is what tells them apart. Ours are IGI certified on the same four criteria, and we quote them individually.

A gemstone in its own right, not a diamond and never sold as one. Moissanite throws more fire than diamond does — that extra flash of colour is how a jeweller spots it across a room — and it is the reason a moissanite tennis necklace reads as bold rather than discreet. Ours is hand-matched and graded for cut and clarity, priced accordingly, and never IGI certified, because IGI certifies diamonds. Every moissanite piece on this site says so on its own page.