Lightning Ridge Solid Natural Black Opal Sterling Silver Ring Semi Black Opals 5B1:Faint B2:Dull B3:Bright B4:Very Bright

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 Opal

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60 mm approxColor : Multi-ColorShape : TriangularCut : Low Dome CabochonClarity : OpaqueBrightness B1 - B5 : B3

7B1: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

61 mm approxColor : Green Blue Shape : OvalCut : Medium Dome CabochonClarity : TranslucentBrightness B1 - B5 : B3

Lightning Ridge Solid Natural Black Opal Sterling Silver Ring Semi Black Opals 5B1:Faint B2:Dull B3:Bright B4:Very BrightOpal Type : Australian Solid Black OpalCarat Weight : 0. 50 ctSize : 5. 20 mm x 5. 20 mm approxColor : Green BlueShape : RoundCut : Low Dome CabochonClarity : TranslucentBrightness 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 Australia Total Item Weight : 4. 17 gMetal Type : SilverMetal