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Item description
Lab Created
Sapphire
Marquise
Cut Faceted
Synthetic
Gemstone
Size~:
1.5x3 mm, 2x3 mm, 2x4 mm, 2.5x5 mm, 3x5 mm, 3.5x7 mm, 4x8 mm, 5x10 mm, 6x12 mm, 7x14 mm
Type ~ Loose Gemstone
Main Stone ~Synthetic
Sapphire
Stone Color~
Blue
Clarity~ Clean
Shape ~
Marquise
Cut~ Excellent
Hardness: 7 on Mohs scale
Refractive Index: 1.65-1.7
Specific Gravity: 3.5-4
Dispersion: 0.015
Melting Point: 1700 degrees Celcius
It does not change color when heated. Can be used in wax casting