Natural Solid Lightning Ridge Opal with Green Blue Colors. Size US 6.5 6B1:Faint B2:Dull B3:Bright B4:Very Bright

6B1:Faint    B2:Dull    B3:Bright    B4:Very Bright    B5:BrilliantBody Tone N1-N9 : N2 Black OpalN1-N4:Black Opal    N5-N6:Dark Opal    N7-N9:Light OpalTreatment : NONEOrigin : Lightning Ridge Opal Field

00 mm x 14

04 gramsMetal Type : GoldMetal Purity : 10k

5B1:Faint    B2:Dull    B3:Bright    B4:Very Bright    B5 : BrilliantBody Tone N1-N9 : N5 Dark OpalN1-N4:Black Opal    N5-N6:Dark Opal    N7-N9:Light OpalTreatment : NONEOrigin : Lightning Ridge Opal Field

81 mm approxThickness : 3

Natural Solid Lightning Ridge Opal with Green Blue Colors. Size US 6.5 6B1:Faint B2:Dull B3:Bright B4:Very BrightLightning Ridge Solid Natural Polished Opal. Opal Type : Solid Australian Light Opal Carat Weight : 1. 12 ct Size : 7. 31 mm x 10. 13 mm approx Thickness : 2. 28 mm Color : Green Blue Shape : Oval Cut : Medium Dome Cabochon Clarity : Translucent Brightness B1 B5 : B3. 7 B1: Faint B2: Dull B3: Bright B4: Very Bright B5: Brilliant Body Tone N1 N9 : N7 Light Opal N1 N4: Black Opal N5 N6: Dark Opal N7 N9: Light Opal Treatment : NONE Origin : Lightning