12mm

Green Chrysoprase 12X10X4.5 Cabochon Oval 4.4 Carat

African Purple Amethyst 12X10X4 Cabochon Oval 4 Carat

African Purple Amethyst 12x12x7.4 Facet Trillion 4.90 Carat Extra Fine AA

Clear Green Chlorite Quartz 11.7x8.4x7 Cabochon Oval 4.94 Carat

Boulder Opal Green Blue 12x12x4.5 Cabochon Round 6.50 Carat

White Opal Multicolour 12x9x3 Cabochon Oval 1.95 Carat

White Opal Red Multicolour 12x7x2.5 Cabochon Freeform 1.65 Carat

White Opal Multicolour 12x9x2.5 Cabochon Freeform 1.50 Carat

White Opal Multicolour 12x8x3 Cabochon Freeform 2.00 Carat

White Opal Red Multicolour 12x10x2.5 Cabochon Freeform 1.85 Carat

White Opal Red Multicolour 12x11x2.7 Cabochon Freeform 2.20 Carat

White Opal Red Multicolour 12x9x2.5 Cabochon Oval 1.70 Carat

Semi Black Opal Green Blue 12x8x4.5 Cabochon Oval 2.80 Carat

Crystal Opal Multicolour 12x7x3.6 Cabochon Freeform 1.85 Carat

Dark Opal Green Multicolour 12x10x5 Cabochon Cushion 4.90 Carat