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This is not a diamond

Moissanite is a stone that passes thermal diamond tests, outperforms diamond in fire and brilliance, and costs a fraction of the price.

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The Mariqe Standard

Every Mariqe stone is hand-selected, graded to D-Excellent standards and tested before it reaches you.

Testing Performance

Every stone passes standard thermal conductivity testing. This is the test most jewelers use. Your ring performs as expected.

Visual Performance

Refractive index 2.65 vs diamond's 2.42. Dispersion 0.104 vs diamond's 0.044. More light bending, more rainbow fire.

Cut Performance

Our moissanites are certified by the Gales Gemological Research Association (GRA) and come with a Moissanite Grading Report.

Made To Sparkle

Every piece is cut to D-Excellent standards, GRA certified and thermal tested.

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The Two Questions That Matter

Will People Know?

Your ring will pass standard thermal diamond testers, the method used in the vast majority of jewelry stores. Moissanite and diamond have nearly identical thermal conductivity. The tester cannot tell them apart.

95%

of jewelry stores use thermal testers. Your ring passes every one.

The 2 carat ring is stunning. I had the ring tested with a diamond tester and it is genuine. It immediately tested like diamond. 

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Suzanne H · Eterna Ring

Is It Actually Better?

In measurable optical terms, yes. Moissanite bends light more sharply and spreads it into colour more than twice as effectively as diamond.

Fire (Dispersion)
0.104 Moissanite
vs
0.044 Diamond
2.4× more fire than diamond
Refractive Index
2.65 Moissanite
vs
2.42 Diamond
Sharper light bend, more white sparkle
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Some prefer diamond's subtler sparkle. Some prefer moissanite's fire. Neither is wrong – they're different optical experiences. But claiming diamond is "better" ignores measurable physics.

Moissanite isn't trying to be diamond. It passes the test people ask about, and it delivers superior optical performance.

That's the Mariqe difference.

When white light enters a stone, each a bends at a slightly different angle. The wider that spread, the more fire you see.
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Why Moissanite Sparkles Differently

You've seen the fire. This is what's producing it.

When white light enters a stone, each color bends at a slightly different angle. The wider that spread, the more fire you see.

Fire (Dispersion): 0.104 vs 0.044
Moissanite spreads light into rainbow colors more than twice as effectively as diamond. This is why moissanite shows more fire.

Refractive Index (Brilliance): 2.65 vs 2.42
Light bends more sharply through moissanite, creating more brilliance and scintillation. In low light especially, moissanite outshines diamond.

What Customers Are Saying

Gorgeous, gorgeous ring! The fire and sparkle are absolutely stunning. I was reading outside, and the sunlight caught it just right and threw rainbow glitter all over the page.

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Stacy N · Eterna Ring

It just sparkles off of the charts. Not a surface sparkle like crystals, but a deep, high end kind of sparkle. First thing I did was to test it with my diamond tester. It most definitely tested as a diamond.

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Kim B · Eterna Ring

Omg these are so beautiful, and they pass on my diamond tester thank you so much!

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Sheena P · Eterna Earrings

Questions? We've got you.

Will it actually pass a diamond tester?

Yes. Moissanite passes standard thermal diamond testers because it conducts heat similarly to diamond. Most jewelry stores use thermal testers. Your ring will test as expected.

Is the stone cut to a real standard?

The stones are D-grade color, VVS1 clarity and excellent cut. They are hand-finished by master gemcutters. We use the same GIA grading language that diamonds use. 

Does higher fire mean it looks 'fake'?

No. It means it performs differently. Some people prefer diamond's subtle sparkle. Some prefer moissanite's fire. In low light, moissanite actually outperforms diamond. Neither is fake, they're different optical experiences.

How do I know the stone I receive matches what I ordered?

Every stone comes with a certification card showing the exact specifications: carat weight, color grade, clarity grade, and cut grade. 

What happens if it doesn't meet expectations?

If your Mariqe stone fails a standard diamond tester, we will return your money.

 

Our gemstones are also covered by a lifetime moissanite warranty, and we will replace it if there are any optical property changes to the stone.

 

Otherwise, if your piece is not quite right, we'll help you find the perfect one.

Our Best Sellers

Discover our stunning moissanite jewelry loved by over 35,000 customers.

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The Jewelry You Never Have to Take Off

Every Mariqe stone passes standard thermal diamond tests, outperforms diamond in fire and brilliance, and arrives with independent GRA certification.

That’s why it’s perfect for jewellery you never take off.

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