Australian Solid Natural Black Opal

Solid Black Opal from Lightning Ridge Opal Type : Solid Australian Black OpalCarat Weight : 1.70 ctSize : 7.70 mm x 10.00 mm approxThickness : 3.66 mmColor : Blue with a touch of GreenShape : TriangularCut : Medium High Dome Cabochon Clarity : Translucent Brightness B1 - B5 : B3.4B1: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. window.tolstoyWidgetId='4y6ctro4elgj1';