Loose Moissanite Stones

Loose moissanite for your own custom ring, a replacement stone or your jeweler's project. Every stone is listed with its millimetre size and diamond-equivalent carat, in classic and antique cuts and a range of colors.

Buy by Millimetres, Not Only Carats

Moissanite is slightly lighter than diamond, so we list each stone with a diamond-equivalent carat (the size of a diamond with the same face-up measurements) and its actual millimetre size. A setting is made for millimetres, so give your jeweler the length, width and depth from the listing before they start.

Cuts We Offer

Alongside round, oval, emerald, pear, cushion, radiant and princess brilliants, we cut antique and specialty styles: the many-faceted Portuguese cut, the crisscross facets of a criss cut, flat-backed rose cuts and thin portrait cuts. Colored moissanite is available in shades such as blue, green and grey.

Want Us to Set It?

If you would rather we make the whole ring, send the stone you like and your design idea through our custom jewelry page and we will reply with what is possible and a quote.

Helpful Guides

Common Questions

What does diamond-equivalent carat mean?

Moissanite is lighter than diamond, so a moissanite the same size as a 1 carat diamond weighs less. Diamond-equivalent carat describes the size, and the millimetre measurements on each listing are the figures to use for a setting.

Can my local jeweler set a loose moissanite?

Yes. Share the length, width and depth from the listing with your jeweler so the setting is made for the stone.

Can I return a loose stone?

Yes, within 30 days of delivery if it is unset and undamaged. For a change of mind you pay the return shipping and a 10% restocking fee applies.

How long does a loose stone take to arrive?

Allow a few business days to prepare and dispatch your stone, then free standard shipping usually takes 8–20 business days, or 6–9 business days with express delivery ($24.99).