Lab-Certified Moissanite 8mm — 1.75 Carat (1.92 Ratti) — Detailed Information
| Gemstone | Moissanite (Silicon Carbide) |
| Type | Lab-grown (no moissanite is mined for gem use) |
| Weight | 1.75 Carat / 1.92 Ratti |
| Diamond Equivalent Weight | 2.00 Carat DEW — wears as a 2 carat stone |
| Dimension | 8.0 mm |
| Shape & Cut | Round Brilliant |
| Color Grade | D — top colourless grade |
| Clarity Grade | VVS1 |
| Cut Grade | Excellent |
| Polish | Excellent |
| Symmetry | Excellent |
| Hardness | 9.25 Mohs — harder than sapphire or ruby |
| Refractive Index | 2.65 – 2.69 — higher than diamond |
| Dispersion (Fire) | 0.104 — over twice diamond’s 0.044 |
| Fluorescence | None |
Discover the Brilliance of Lab-Certified Moissanite
Our Lab-Certified Moissanite 8mm — 1.75 Carat (1.92 Ratti) gemstone combines top-grade colour, clarity and cut with exceptional durability. With a colour grade of D (the highest grade) and VVS1 clarity, this stone has a higher refractive index than diamond (2.65–2.69 against 2.417) and over twice its fire (dispersion 0.104 against 0.044) — it does not imitate diamond’s sparkle, it exceeds it.
It carries an excellent cut grade with excellent polish and symmetry, the three grades that decide how much light a stone returns. At 8.0 mm it wears as a 2 carat stone. Equally at home in an engagement ring or a solitaire pendant, and hard enough at Mohs 9.25 for daily wear.
Our Policies & Care Tips for Your Lab-Certified Moissanite
| Returns Policy | 7-day easy return policy if you’re not fully satisfied with your Moissanite stone. |
| Lifetime Authenticity Guarantee | Your Moissanite gemstone comes with a lifetime guarantee for authenticity. |
| Care Instructions | Moissanite is chemically inert and, unlike most gemstones, safe in an ultrasonic cleaner. Clean with warm soapy water and a soft brush, or a soft damp cloth. The stone itself is unaffected by household chemicals, but keep them away from the piece so the metal setting is not damaged, and avoid abrasives on the polish. |
Learn More About Moissanite
Explore our Moissanite vs Diamond: Price, Fire, Hardness and How to Tell Them Apart blog to learn more about the differences between Moissanite and natural diamonds, and why Moissanite is an excellent choice for fine jewellery.













