Lightning Ridge Solid Black Opal with Blue Color Semi Black Opals B1:Faint B2:Dull B3:Bright B4:Very Bright

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

Shape : Pear

Solid Australian Natural Black Opal

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

Lightning Ridge Solid Black Opal with Blue Color Semi Black Opals B1:Faint B2:Dull B3:Bright B4:Very BrightSolid Black Opal from Lightning Ridge Opal Type : Solid Australian Black OpalCarat Weight : 1. 67 ctSize : 7. 28 mm x 10. 26 mm approxThickness : 3. 71 mmColor : Blue Shape : OvalCut : Medium High Dome Cabochon Clarity : Translucent Brightness B1 B5 : B3. 5B1: Faint B2: Dull B3: Bright B4: Very Bright B5: BrilliantBody Tone N1 N9 : N4 Black OpalN1 N4: Black Opal N5 N6: Dark Opal N7 N9: Light OpalTreatment : NONEOrigin : Lightning Ridge Opal Field, NSW