The Brilliance Advantage
Moissanite doesn't just match diamond's sparkle—it exceeds it. With a refractive index of 2.65 compared to diamond's 2.42, moissanite bends light more dramatically, creating superior brilliance.
Understanding Fire and Dispersion
Fire refers to the rainbow flashes you see when light passes through a gemstone. Moissanite's dispersion rating of 0.104 is 2.5 times higher than diamond's 0.044, producing spectacular rainbow sparkles that diamonds simply cannot match.
What This Looks Like in Real Life
In natural and artificial light, moissanite creates:
- More intense white light reflection (brilliance)
- More colourful rainbow flashes (fire)
- Greater overall sparkle in all lighting conditions
- Eye-catching scintillation with every movement
The Double Refraction Effect
Moissanite is doubly refractive, meaning light splits into two rays as it passes through the stone. This creates additional facet patterns and depth, contributing to moissanite's distinctive sparkle.
Colour Performance
Premium moissanite is near-colourless, graded on the GIA colour scale. In white gold or platinum settings, high-quality moissanite appears completely colourless whilst maintaining its superior fire.
Size and Sparkle
Larger moissanite stones showcase even more dramatic fire and brilliance. Because moissanite is affordable, you can choose a larger carat weight that maximises this optical performance.