Opal Type : Solid Australian Dark Opal
Carat Weight : 2.40 ct
Size : 10.86 mm x 15.00 mm approx.
Color : Blue Green
Shape : Free Shape
Cut : Low Dome Cabochon
Clarity : Translucent
Brightness B1 - B5 : B3.8
B1:Faint B2:Dull B3:Bright B4:Very Bright B5:Brilliant
Body Tone N1-N9 : N6 Dark Opal
N1-N4:Black Opal N5-N6:Dark Opal N7-N9:Light Opal
Treatment : No Enhanced
Origin : Lightning Ridge Opal Field, NSW Australia.