Solid Lightning Ridge Black Crystal Opal Gold Ring. Size:US 5.5 71 mm approxThickness : 4

71 mm approxThickness : 4

Color : Green Blue

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7B1: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

Opal Type : Solid Black Opal

Solid Lightning Ridge Black Crystal Opal Gold Ring. Size:US 5.5 71 mm approxThickness : 4Australian Solid Black Crystal Opal 10k Gold Ring. Opal Type : Australian Solid Black Crystal Opal Carat Weight : 1. 02 ct Size : 7. 00 mm x 10. 70 mm approx Color : Green Blue Yellow Shape : Oval Cut : Low Dome Cabochon Clarity : Translucent Brightness B1 B5 : B3. 8 B1: Faint B2: Dull B3: Bright B4: Very Bright B5: Brilliant Body Tone N1 N9 : N4 Black Opal N1 N4: Black Opal N5 N6: Dark Opal N7 N9: Light Opal Treatment : NONE Origin : Lightning Ridge