Solid Lightning Ridge Opal with Green Blue Colors. Size US 6.5 8B1:Faint B2:Dull B3:Bright B4:Very Bright

8B1:Faint     B2:Dull     B3:Bright     B4:Very Bright     B5:BrilliantBody Tone N1-N9 : N8 Light OpalN1-N4:Black Opal     N5-N6:Dark Opal     N7-N9:Light OpalTreatment : NONEOrigin : Coober Pedy Opal Field

10 ctSize : 7

60 mm approx

Australian Natural Solid Black Opal 14k/585 Gold Ring

Solid Lightning Ridge Opal with Green Blue Colors. Size US 6.5 8B1:Faint B2:Dull B3:Bright B4:Very BrightLightning Ridge Solid Natural Polished Opal. Opal Type : Solid Australian Dark Opal Carat Weight : 1. 88 ct Size : 5. 30 mm x 10. 00 mm approx Thickness : 4. 00 mm Color : Green Blue Shape : Rectangle Round Edge Cut : Facet Clarity : Translucent Brightness B1 B5 : B3. 6 B1: Faint B2: Dull B3: Bright B4: Very Bright B5: Brilliant Body Tone N1 N9 : N6 Dark Opal N1 N4: Black Opal N5 N6: Dark Opal N7 N9: Light Opal Treatment : NONE Origin : Lightning