RESERVED Natural Solid Lightning Ridge Opal with Multi-Color Fires. 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 OpalTreatment : NONEOrigin : Lightning Ridge Opal Field

Opal Type : Solid Dark Crystal Opal

53 mm approx

48 gramsMetal Type : SilverMetal Purity : 92

Cut : Low Dome

RESERVED Natural Solid Lightning Ridge Opal with Multi-Color Fires. Semi Black Opals 5B1:Faint B2:Dull B3:Bright B4:Very BrightAustralian Solid Natural Polished Dark Opal. Opal Type : Solid Australian Dark Opal Carat Weight : 1. 30 ct Size : 7. 15 mm x 10. 12 mm approx Thickness : 3. 21 mm Color : Multi Color Shape : Free Shape Cut : Medium Dome Cabochon Clarity : Opaque Brightness B1 B5 : B3. 9 B1: Faint B2: Dull B3: Bright B4: Very Bright B5: Brilliant Body Tone N1 N9 : N5 Dark Opal N1 N4: Black Opal N5 N6: Dark Opal N7 N9: Light Opal Treatment : NONE Origin : Lightning