Megyn Kelly TODAY

Megyn Kelly TODAY

Forever One Moissanite Engagement Ring

A Cut Above the Rest

Gemstone comparison guide

Brilliance Refraction Index (RI)

Charles & Colvard Moissanite:
2.65-2.69
Diamond: 2.42
Ruby: 1.77
Sapphire: 1.77
Emerald: 1.58

Fire Dispersion

Charles & Colvard Moissanite:
0.104
Diamond: 0.044
Ruby: 0.018
Sapphire: 0.018
Emerald: 0.014

Hardness Mohs Scale

Charles & Colvard Moissanite:
9.25
Diamond: 10
Ruby: 9
Sapphire: 9
Emerald: 7.5

Toughness

Charles & Colvard Moissanite:
Excellent
Diamond: Excellent*
Ruby: Excellent**
Sapphire: Excellent**
Emerald: Good To Poor

*In cleavage direction, toughness is "good."
**Except twinned stones.