Lab Created Ruby Red Round Brilliant (10 options) Faceted Loose Gemstones since 1989 USA

Gem Species: CORUNDUM Hardness: 9 Density: 3.95 RI: 1.76 We carefully select the rough to represent accurately its natural counterpart. These gems are created by the Flame Fusion and have essentially the same physical properties as natural Ruby.

• Fine Cut = Precision cut or visually imitates a precision cut. These stones have equal and symmetrical faceting with proper cutting angles ("critical angle') and depth.
• AAA = eye clean, any inclusions will not be visible to the eye.
• Weight is approximate. Size can vary +-0.1mm.
• Optima Gem is a US based small business that has provided honest, accurately graded gemstones for over 30 years. Satisfaction Guaranteed.