Natural Solid Lightning Opal with Green Blue Colors Light Opals 5B1:Faint B2 :Dull B3:Bright B4:Very

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

87 mm approx

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

89 mmColor : Multi-ColorShape : OvalCut : Low Dome Cabochon Clarity : OpaqueBrightness B1 - B5 : B3

Opal Type : Solid Australian Black Opal

Natural Solid Lightning Opal with Green Blue Colors Light Opals 5B1:Faint B2 :Dull B3:Bright B4:VeryLightning Ridge Solid Natural Polished Opal Opal Type : Solid Australian Dark OpalCarat Weight : 2. 54 ctSize : 10. 57 mm x 11. 23 mm approxThickness : 3. 70 mmColor : Green BlueShape : HeartCut : Low Dome Cabochon Clarity : OpaqueBrightness B1 B5 : B3. 8B1: Faint B2: Dull B3: Bright B4: Very Bright B5: BrilliantBody Tone N1 N9 : N6 Dark OpalN1 N4: Black Opal N5 N6: Dark Opal N7 N9: Light OpalTreatment : NONEOrigin : Lightning Ridge Opal Field, NSW