Australian Natural Solid Black Opal
Opal Type : Solid Australian Black Opal
Carat Weight : 6.76 ct
Size : 15.00 mm x 15.00 mm approx
Thickness : 3.95 mm
Color : Multi-Color
Shape : Square
Cut : Medium Dome Cabochon
Clarity : Opaque
Brightness B1 - B5 : B3.6
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 Ridge Opal Field, NSW Australia.