Lab Grown Ruby
Lot R1219
Color: Dark Red
Size: 13.5x9x7.5mm
Weight: 18.33ct
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
