Lightning Ridge Solid Natural Black Opal with Multi-Color Fires. Crystal Opals B1:Faint B2:Dull B3:Bright B4:Very Bright

B1:Faint    B2:Dull    B3:Bright    B4:Very    Bright B5:Brilliant

Opal Type : Solid Dark Crystal Opal

Australian Solid Natural Black Opal 10k Gold Pendant

Color : Green Orange Yellow Blue

60 ctColor : Green WhiteShape : Free ShapeCut : Medium Dome CabochonTreatment : No EnhancedOrigin : Western Australia-----------------------------------

Lightning Ridge Solid Natural Black Opal with Multi-Color Fires. Crystal Opals B1:Faint B2:Dull B3:Bright B4:Very BrightLightning Ridge Solid Natural Polished Black Opal. Opal Type : Solid Australian Black Opal Carat Weight : 1. 70 ct Size : 5. 70 mm x 13. 00 mm approx Thickness : 3. 00 mm Color : Multi Color Shape : Oval Cut : Medium Dome Cabochon Clarity : Opaque Brightness B1 B5 : B3. 7 B1: Faint B2: Dull B3: Bright B4: Very Bright B5: Brilliant Body Tone N1 N9 : N2 Black Opal N1 N4: Black Opal N5 N6: Dark Opal N7 N9: Light Opal Treatment : NONE Origin : Lightning