Opal Type : Solid Australian Black Opal
Carat Weight : 0.91 ct
Size : 5.88 mm x 8.25 mm approx
Thickness : 3.19 mm
Color : Green Blue
Shape : Pear
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 : N2 Black Opal
N1-N4:Black Opal N5-N6:Dark Opal N7-N9:Light Opal
Treatment : NONE
Origin : Lightning Ridge Opal Field, NSW Australia