Pictures viewing from both sides
Opal Type : Solid Australian Dark Crystal Opal
Carat Weight : 1.83 ct
Size : 8.14 mm x 11.29 mm approx
Thickness : 3.44 mm
Color : Purple Blue
Shape : Free Shape
Cut : Double Low Dome cabochon
Clarity : Translucent
Brightness B1 - B5 : B3.4
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 Ridge Opal Field, NSW Australia