Diamond

Diamond, the most famed and fabled of all gemstones, is very unique in many ways. Renowned for being the hardest substance on earth, its sparkling fire, durability, and rarity make Diamond the most prized of all gems. No gemstone contains as much allure and interest as does diamond.

Color Colorless, Blue, Red, Green, Yellow, Orange, Brown, Pink, Purple, Gray, Black
Mohs scale hardness 10
Specific gravity 3.1 - 3.5
Refractive index 2.417 - 2.419