Lab Grown Ruby
Lot R1217
Color: Red
Size: 15x14.5x6.5mm
Weight: 21.13ct
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
