Part I: The Science
What Is Moissanite?
Moissanite was first discovered in 1893 by Nobel Prize-winning chemist Henri Moissan inside a meteor crater in Arizona. The mineral — silicon carbide (SiC) — was so rare in nature that every moissanite sold today is grown in a laboratory under controlled conditions. It is not a diamond simulant. It is a distinct gemstone with its own chemical structure, its own optical properties, and in several measurable ways, its own superiority.
Refractive Index: Why Moissanite Outsparkles Diamond
The refractive index (RI) measures how much a gemstone bends light — and bending light is what creates brilliance. Diamond has an RI of 2.42. Moissanite has an RI of 2.65–2.69. That gap is not subtle. It means moissanite disperses more spectral color — what jewelers call "fire" — than any diamond at any price point. Under natural light, the difference is visible. Under direct light, it is dramatic.
| Property | Moissanite | Diamond |
|---|---|---|
| Refractive Index | 2.65–2.69 | 2.42 |
| Mohs Hardness | 9.25 | 10 |
| Brilliance (RI-based) | Higher | Lower |
| Fire (Dispersion) | 0.104 | 0.044 |
| Origin | Lab-grown | Mined or lab-grown |
| Price per carat (approx.) | $300–$600 | $4,000–$10,000+ |
Hardness: Built to Last
On the Mohs scale, diamond scores a 10 — the hardest naturally occurring substance on Earth. Moissanite scores 9.25, making it the second hardest gemstone in existence. For everyday wear, this distinction is largely academic. A 9.25 stone will not scratch from contact with anything you encounter in daily life. It will not cloud. It will not chip from normal wear. The "Triple Excellent" (3EX) cut standard — Excellent Cut, Excellent Polish, Excellent Symmetry — ensures that every facet maintains its light return for a lifetime.
Price: The Honest Comparison
A 1-carat round brilliant diamond of VS2 clarity and G color retails for approximately $5,000–$8,000. A 1-carat round brilliant moissanite of equivalent visual quality retails for $400–$600. The price difference is not a quality gap — it is a market structure gap. Diamond prices are sustained by controlled supply and decades of marketing. Moissanite prices reflect actual production costs. You are not buying less. You are buying differently.
Can You Tell the Difference?
With the naked eye, under normal conditions: no. A trained gemologist with a loupe can distinguish them by their double refraction (moissanite is birefringent; diamond is not) and their slightly different fire pattern. A standard diamond tester will read moissanite as diamond, because both conduct heat similarly. A dedicated moissanite tester is required for definitive identification. For the person wearing it and everyone looking at it across a dinner table, the stones are visually indistinguishable — and moissanite is often described as "more brilliant" by observers who don't know what they're looking at.
Part II: The Position
Why TARA AYARH LUNE Chose Moissanite
We did not choose moissanite because it was cheaper. We chose it because it was honest.
The traditional diamond industry was built on a supply chain that, for most of its history, could not be fully traced. "Conflict-free" became a certification category precisely because the alternative was so common. Lab-grown diamonds have improved this picture significantly — but they remain chemically identical to mined diamonds, and the marketing around them often inherits the same mythology: that a stone's value is measured in carats and certificates rather than in what it actually does when light passes through it.
Moissanite carries none of that history. It was born in a meteor. It is grown in a lab. Its supply chain is transparent by design. And it outperforms diamond on the one metric that actually matters when you're wearing jewelry: how it looks in the light.
The Levi's Principle
In 1873, Levi Strauss and Jacob Davis patented copper rivets for work pants during the California Gold Rush. Every other manufacturer was promising wealth. They made one verifiable claim: this pocket will not tear from your tools. One hundred and fifty years later, the brand is still here.
We apply the same logic. We will not promise you that a stone will change your fortune. We will tell you that its refractive index is 2.65–2.69, its hardness is 9.25 on the Mohs scale, its cut meets Triple Excellent standards, and it will look extraordinary on your hand for the rest of your life. These are claims we can prove. They are the only claims we make.
Who Moissanite Is For
Moissanite is for the person who has done the research and decided that optical performance and ethical clarity matter more than brand mythology. It is for the person who would rather spend the difference on something real — a trip, a down payment, a year of financial breathing room — without wearing a stone that looks like a compromise, because it isn't one.
It is, in short, for the person who knows the difference between price and value.
TARA AYARH LUNE specializes in high-grade moissanite jewelry with 3EX cut standards, set in 14K gold and sterling silver. All stones are lab-grown and conflict-free.
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