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16.18ct Pigeon Blood Ruby (Czochralski) Lab Grown Faceting Rough
Lab Grown Ruby
Lot R1221
Color: Red
Size: 15x9.5x6mm
Weight: 16.18ct
Inclusions: May have some inclusions and cracks (please, pay attention to the photo)
Mineral: Corundum
Chemical Formula: Al2O3
Crystal System: Trigonal
Hardness (Mohs): 9
Refractive Index: 1.76–1.77
Density, g/cm3: 4
Dispersion: 0.018
Pleochroism: Strong
Growth Method: Czochralski