Lab Grown Sapphire
Lot R1238
Please note that only rough stone is included in the lot.
The photo of the faceted stone is only used to demonstrate the approximate color of the material after cutting.
Color: Yellow
Piece №1
Size: 20.45ct
Weight: 31x8x7mm
Piece №2
Size: 23.55ct
Weight: 26x14x5mm
Piece №3
Size: 27ct
Weight: 20x13x6mm
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
