Moissanite Education Guide
Your Complete Guide to Moissanite
Moissanite is one of the most brilliant gemstones on earth — and one of the most misunderstood. Whether you're considering a moissanite engagement ring or simply want to learn more before you buy, this guide answers the questions that matter most.
Moissanite vs Diamond: What's the Difference?
The debate between moissanite and diamond comes down to four key areas: brilliance, durability, ethics, and cost. In every one of these areas, moissanite holds its own — and in some, it comes out ahead.
| Property | Moissanite | Diamond |
|---|---|---|
| Mohs Hardness | 9.25–9.5 | 10 |
| Refractive Index | 2.65–2.69 | 2.42 |
| Origin | Lab-created | Mined or lab-grown |
| Ethical Sourcing | Conflict-free by nature | Varies by source |
| Cost (relative) | Fraction of diamond price | Premium pricing |
While experienced gemologists can tell the two apart, the average person cannot distinguish moissanite from diamond with the naked eye — especially in a well-cut stone. Modern moissanite cutting and polishing techniques have made the two virtually indistinguishable in everyday wear.
Brilliance & Fire
One of the most striking qualities of moissanite is its exceptional brilliance. Moissanite has a higher refractive index than diamond (2.65–2.69 vs 2.42), which means it bends and reflects light more intensely. The result is a mesmerising display of fire and sparkle that many find even more eye-catching than a diamond of the same size and cut.
Under natural and artificial light, moissanite produces colourful light dispersion — the rainbow flashes known as "fire" — at a rate that exceeds diamond. If you love a stone that truly catches the light, moissanite delivers.
Durability & Hardness
Moissanite ranks 9.25–9.5 on the Mohs hardness scale, making it one of the hardest substances on earth. For context, only diamond (10) is harder. This means moissanite is highly resistant to scratching and chipping, and is perfectly suited to everyday wear — including engagement rings that are worn continuously for decades.
Your moissanite ring will remain as brilliant and scratch-free years from now as it is on the day you receive it. It won't cloud, fade, or lose its sparkle over time.
Ethical & Sustainable Sourcing
All moissanite sold by Fire & Ice Moissanite is lab-created. This means:
- No mining required — moissanite is grown in controlled laboratory environments, eliminating the environmental damage associated with gemstone mining.
- Conflict-free by nature — unlike mined diamonds, there is no supply chain risk of funding conflict or human rights abuses.
- Lower environmental footprint — lab creation uses significantly less land and water than traditional mining operations.
Choosing moissanite is a choice that aligns beauty with values. You can wear your ring knowing it caused no harm to people or planet.
Cost & Value
Moissanite is typically available at a fraction of the cost of a comparable diamond. A 1-carat diamond engagement ring can cost thousands of dollars, while a moissanite of the same size and quality costs significantly less — without any visible compromise in beauty or durability.
This price difference means you can choose a larger stone, a more intricate setting, or simply invest the savings elsewhere — whether that's your honeymoon, your home, or your future together.
Certification
Quality moissanite comes with certification that verifies the stone's authenticity, cut, colour, and clarity. At Fire & Ice Moissanite, our stones are sourced from reputable suppliers and come with documentation you can trust. If you have questions about the certification for a specific stone, please contact us and we'll be happy to assist.
Care & Maintenance
Moissanite is a low-maintenance gemstone. To keep your stone looking its best:
- Clean regularly with warm water, mild dish soap, and a soft toothbrush.
- Avoid harsh chemicals such as bleach or chlorine, which can damage metal settings.
- Remove your ring before activities that could expose it to abrasive materials.
- Store separately from other jewellery to prevent scratching of softer stones or metals.
- Have your setting checked by a jeweller annually to ensure prongs remain secure.
With basic care, your moissanite jewellery will remain stunning for a lifetime — and beyond.
Common Questions
Can you tell moissanite apart from diamond?
Most people cannot. Even experienced jewellers may need specialised equipment to distinguish the two. Moissanite's higher refractive index can sometimes produce a slightly more colourful sparkle, but in everyday settings this difference is rarely noticeable.
Does moissanite get cloudy over time?
No. Unlike some gemstones, moissanite does not cloud, fade, or lose its brilliance over time. Its optical properties are permanent.
Is moissanite a real gemstone?
Yes. Moissanite is a genuine gemstone with its own unique chemical composition (silicon carbide). It was first discovered in a meteor crater in 1893 by Nobel Prize-winning chemist Henri Moissan. Today it is produced in laboratories to the highest quality standards.
Is moissanite a good choice for an engagement ring?
Absolutely. Its hardness, brilliance, and durability make it an excellent choice for a ring worn every day. Countless couples choose moissanite for its beauty, ethics, and value — without any compromise on the meaning behind the ring.
What colours does moissanite come in?
Moissanite is available in colourless (equivalent to D–F diamond colour grades), near-colourless, and fancy colours. Our collection focuses on premium colourless and near-colourless stones for the most diamond-like appearance.
Ready to find your perfect stone? Browse our full collection or get in touch — we're here to help you make a confident, informed choice.
