Moissanite, plainly.

Is moissanite a real gemstone?

Yes. Moissanite is a real mineral, crystalline silicon carbide. It was first found in a meteorite crater in 1893. Natural moissanite is far too rare to set in jewellery, so the stones sold today are grown in a lab. It is not cubic zirconia, it is not glass, and it is not diamond.

What we can and cannot vouch for. Our listings say “real moissanite” because that is what the manufacturer states for each piece, and each product page lists exactly what the manufacturer states. We have not had our stones graded by an independent lab. Where a listing mentions a certificate such as GRA, that is the supplier’s own paperwork, not a report from an accredited independent lab, and we do not present it as a grade.

Does moissanite pass a diamond tester?

On the common pocket testers, yes, and that is the catch. Most diamond testers measure how quickly heat moves through a stone, and moissanite moves heat much like diamond does, so a thermal tester reads moissanite as diamond. A tester that also measures electrical conductivity (often sold as a dual thermal-and-electrical or “moissanite” tester) can tell the two apart, because moissanite conducts electricity and colourless diamond does not.

The tester we sell is thermal only. It separates diamond-class stones from cubic zirconia, glass and metal. It reads moissanite as diamond, so it cannot tell moissanite from diamond, and a positive reading from it is not proof that a stone is a diamond. It ships with a 30x loupe in the same kit.

How can I tell moissanite from cubic zirconia with a loupe?

Look for doubling. Moissanite is doubly refractive, so when you look through the top of the stone at an angle with a loupe, the far edges of the facets underneath appear as two faint copies of each line. Cubic zirconia bends light one way only, so its facet edges stay single.

• Use a 10x loupe or stronger, good light, and hold the stone still.
• Tilt it a little. Looking straight down one axis can hide the effect, so try more than one angle.
• Doubling is subtle on very small stones. Not seeing it on a tiny stone settles nothing.
• For the same size, cubic zirconia is noticeably heavier than moissanite.

A thermal tester is a second check: it reads cubic zirconia as not diamond and moissanite as diamond. Neither check alone is a laboratory identification.

How much is shipping and how long does it take?

Shipping is $7.95 for the first item and $0.65 for each extra unit, and it is free on orders of $240 or more. It is shown before you pay, and nothing is added after that.

Pieces marked “Ships from the US” on their product page are packed in 1–5 days and then take 2–5 days to arrive. Every other piece ships direct from the manufacturer: packed in 2–7 days, then 8–15 days to arrive. These are estimates, not guarantees.

Checkout accepts addresses in the United States, Canada, the United Kingdom and Australia. We cover any import duty on orders delivered to the United States. For the other three countries the terms make no duty promise, so local duty or taxes could apply on arrival.

What is the returns policy?

• Arrives broken, faulty or not as described: email within 30 days of delivery with your order number and a photograph. You get a replacement or a full refund, and you do not pay to send anything back.
• Changed your mind: email within 14 days of delivery. Send it back unused and in its packaging and you get the item price refunded. You pay the return postage and the original shipping is not refunded.
• Never arrived: if tracking has not moved for 10 days past the top of the delivery window, email us and we will replace it or refund it.

Refunds go back to the card that paid and take five to ten business days to show, depending on your bank. We do not hold store credit. The full wording, including what is not returnable, is in the returns section of the terms.

How do I pick a ring size or bracelet length?

Rings are in US sizes, and each product page lists the sizes that piece comes in; most come in US 5 to 9. If you are between two sizes, our advice is to size up, because a band is easier to resize down than up.

Bracelets are sold by length and the options on the product page show each length with its stone width. Measure your wrist with a strip of paper, mark where it meets, and compare that to the length you choose.

Who am I buying from?

Quaryn is a sole trader based in Minneapolis, Minnesota, United States. Contact details, how fast we answer, and how to track an order are on the terms page and the order tracker.