Solid Black Opal from Lightning Ridge with Green Blue Yellow Colors. Dark Opals Australian Solid Natural Dark Opal

Australian Solid Natural Dark Opal 10k Gold Ring

50 ctColor : Green Shape : RectangleCut : Medium Dome CabochonTreatment : NONEOrigin : Western Australia-----------------------------------

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Australian Solid Natural Polished White Opal

Australian Solid Natural Crystal Opal

Solid Black Opal from Lightning Ridge with Green Blue Yellow Colors. Dark Opals Australian Solid Natural Dark OpalAustralian Solid Natural Polished Black Opal. Opal Type : Solid Australian Black Opal Carat Weight : 0. 50 ct Size : 4. 10 mm x 6. 13 mm approx Thickness : 2. 86 mm Color : Green Blue Yellow Shape : Oval Cut : Medium Dome Cabochon Clarity : Opaque Brightness B1 B5 : B3. 8 B1: Faint B2: Dull B3: Bright B4: Very Bright B5: Brilliant Body Tone N1 N9 : N3 Black Opal N1 N4: Black Opal N5 N6: Dark Opal N7 N9: Light Opal Treatment : NONE Origin : Lightning