Moissanite and diamond differ in optical properties: moissanite shows stronger ‘fire’ (rainbow flashes) and exhibits double refraction under magnification, while diamonds show single refraction and different thermal/electrical responses. Use a combination of visual cues, a diamond tester, and professional verification for a definitive ID.
Key Facts
- Moissanite has stronger dispersion (more colorful flashes) than diamond.
- Under magnification, moissanite may show doubled facet junctions (double refraction).
- Specialized testers and lab certificates provide reliable identification.
Summary
Look for stronger fire and double refraction in moissanite, use specialized testers, and get professional lab verification for a conclusive identification.
