Not by looking, and not with the thermal tester most jewellers keep at the counter — moissanite reads as diamond on it, because the two conduct heat almost identically. The only reliable way is a dual thermal/electrical meter, or a gemologist checking specifically for moissanite under 10x magnification.

Read the full explanation.

Orders leave within 2 business days and arrive in 3–10 business days. Shipping is free everywhere, with no minimum, and duties are calculated at checkout so nothing is owed on delivery.

Already ordered? Track your order.

18k gold vermeil — a thick layer of real gold over sterling silver — or rhodium-plated 925 sterling silver. The metal is listed on every product page. Both are nickel-free.

Keep them away from perfume, hairspray, chlorine and cleaning products, and store pieces separately to prevent scratching. Plating wears with time; that is normal for plated jewellery and not a defect.

Send it back within 30 days and we will exchange it for the right size — unworn and in its original packaging. If you are between sizes, size up: a slightly loose ring is a quick fix at any jeweller, a tight one is not.

Not sure of your size? Use the ring size guide.

30 days, unworn, in the original packaging, with free return shipping within the US. On top of that, every gemstone carries a lifetime warranty against clouding, dulling or loss of fire under normal wear.

If your stone ever clouds, dulls or loses fire under normal wear, we replace it — for as long as you own the piece.

It covers the stone. Plating is a wear item and is not covered, because all plated jewellery wears with time.