3.55ct non-resin black opal with green fire oval cabochon 12x10 authentic mm lab grown
3.55ct non-resin black opal with green fire oval cabochon 12x10 authentic mm lab grown, Gilson (Non-Resin) OpalLot CS354Color: Black with green fireShape: Oval CabochonSize: 12x10 mmWeight: 355 ctQuantity: 1 pcsClassification: Lab Grown OpalChemical composition: SiO2 + nH2OHardness.
Product code: 3.55ct non-resin black opal with green fire oval cabochon 12x10 authentic mm lab grown
authentic Gilson (Non-Resin) Opal
Lot CS354
Color: Black with green fire
Shape: Oval Cabochon
Size: 12x10 mm
Weight: 3.55 ct
Quantity: 1 pcs
Classification: Lab Grown Opal
Chemical composition: SiO2 + nH2O
Hardness (Mohs): 6.5
Specific Gravity: 2.2-2.25
Heat Resistance: 1200 C
Water: 0%
Polymer: 0%