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Can jewelers tell the difference between diamonds and moissanite?

Author

Mia Kelly

Published Jan 20, 2026

Diamond or moissanite? Only a trained eye can tell. Armed only with the naked eye, the best way to see the difference is to have a comparably sized diamond and to compare side-by-side. You'll notice that moissanite and diamonds have different brilliance.

Can you really tell the difference between moissanite and diamond?

The most effective way to tell moissanite apart from a diamond is to use a loupe to look through the top, or the crown, of the jewel at an angle. You will see two slightly blurred lines that indicates a double refraction, an inherent quality of moissanite. Double refraction is easier to see in some shapes than others.

Can a diamond tester detect moissanite?

A diamond tester will only test positive for diamond and moissanite. Synthetic moissanite has been used as a gemstone only since the 1990s, so if your piece is from an earlier era, it's definitely a diamond if it passes this test!

Can a jeweler test moissanite?

The major tests jewelers use to tell real diamonds from other white stones are confirming they are singly refractive, have 10/10 hardness, and super high conductivity. Moissanite is doubly refractive under magnification, which easily separates it from diamond.

Why do lab grown diamonds test as moissanite?

Its technically known as a "type 2" diamond. Due to the existence of trace amounts of boron in the diamond crystal, type b diamonds conduct heat and electricity, and so they can falsely be identified as Moissanites by handheld testers.

38 related questions found

Do pawn shops buy moissanite?

Will Pawn Shops or Jewelry Stores Buy Moissanite? Pawn shops will buy just about any item that they're certain they can resell at a profit. They're a middle man, in the sense that they're going to turn and resell your Moissanite ring to an end user.

Will moissanite get cloudy?

Does Moissanite become cloudy? Natural mineral called silicon carbide is where Moissanite grown from. Therefore, Moissanite will never become cloudy, discolour or change its appearance. A Moissanite will maintain its brilliance, colour and clarity for a lifetime and beyond.

Are there fake moissanite?

There are a lot of fake moissanite on the market, or zircon is used instead of moissanite. After wearing it for a long time, it will become white and black. Nowadays, there are sellers start to sell moissanite jewelry with apprasial from authenticity which will hugely release customer's mind to purchase with confident.

Will moissanite last forever?

They worry that moissanite will not have the same durability or lifetime sparkle of a diamond ring. However, moissanite is very similar to diamonds in this sense, and we are so confident that your ring will last forever that all of our moissanite comes with a lifetime guarantee.

Is cubic zirconia better than moissanite?

Moissanite has a hardness score of 9.25 and CZ, 8-8.5. This means that Moissanite is harder to a clear extent. As for the “toughness” rating, which would indicate how likely or unlikely the stones are to break, Moissanite really kills it here. It has a toughness rating of 7.6 PSI to 2.4 of Cubic Zirconia.

Does moissanite lose its sparkle?

So one of the best things about moissanite is that it never in fact actually loses its sparkle and it is much more affordable than diamonds and superior to any other diamond alternative stone such as the more commonly known, “CZ”.

Do moissanite rings look like diamonds?

Technically speaking, Moissanite is a diamond simulant. This means it simulates the look and sparkle of a diamond. The facets on moissanite will be a more uniform, and there are less facets on moissanite.

Can I wear my moissanite ring everyday?

As the second hardest gemstone on earth, moissanite is extremely durable and highly scratch resistant, making it perfect for everyday wear as your engagement ring stone.

Is it worth to buy moissanite?

Artfully created in a laboratory, moissanite is an incredibly durable stone, made to last a lifetime and guaranteed to survive everyday wear. The customisation possibilities, paired with the very attractive price tag, makes moissanite an extremely enticing alternative to the traditional diamond engagement ring.

Does moissanite get dirty easily?

No, Moissanite is its own gemstone.

This means your Moissanite will repel dirt and oil better than a diamond!

Which moissanite cut is closest to a diamond?

Of all shapes, round cut moissanite most closely resembles a diamond. Round cut stones have very specific facets and proportions, and round moissanite has been able to be cut in a way that causes light to interact with it in almost exactly the same way it does with diamond.

Why is moissanite so cheap?

Fortunately, Moissanite's lower price point is not reflective of its quality. The lower price point is simply a reflection of supply and demand in the engagement ring industry. While we are seeing a shift toward using other gemstones for engagement rings, over 90% of couples are still choosing Diamonds.

How do you tell if a diamond is real with a flashlight?

Simply hold the loose diamond near a light source, like a lamp, and see the reflection of the light from the diamond. This test will be best if there is another gem that you'll compare along with it, like cubic zirconia. You'll see how different their effects are to light.

Does moissanite turn green?

Unlike other gems, Moissanite ring does not discolor. This is mainly because it is resistant to high pressure and temperature. This is why most couples are loving the idea of a Moissanite ring for an engagement ring.

Is moissanite like cubic zirconia?

The main differences between Moissanite and Cubic Zirconia are: Moissanite is made of silicon carbide, whereas cubic zirconia is made of zirconium dioxide. Moissanite diamonds are generally harder at 9.5 on a 10 point scale, whereas cubic zirconia is 8.5 on the hardness scale.

How do you remove oil slick from moissanite?

One relatively simple way to clean the oil slick off of the surface of Moissanite, is with a Moissanite cleaning cloth (sometimes also referred to as a Sterling Polishing Cloth, a Sunshine Cleaning Cloth, a Yellow Sunshine Cloth, or a Jeweler's Rouge Cloth).

Can you sell moissanite as a diamond?

You absolutely CAN resell Moissanite!

What is the gem moissanite?

Moissanite is a diamond simulant made of silicon carbide. A diamond simulant is a stone that has a similar appearance to a diamond but is not a real diamond. It is very difficult to tell apart a diamond & moissanite, making moissanite a common diamond alternative.

Can I wash my hands with my moissanite ring on?

Generally, you don't have to take off your engagement ring when you wash your hands. In fact, using gentle soap and water is the best way to clean an engagement ring at home, so washing your hands won't do any damage to your jewelry.

Does Moissanite come with a certificate?

Yes, All of Our jewelry comes with a Certificate of Authenticity. Every certificate includes detailed information about your item including color, cut and clarity. Are Forever Moissanite Jewelry products brand new?