Opal Type : Australian Solid Dark Opal
Carat Weight : 6.75 ct
Size : 17.70 mm x 20.77 mm approx.
Color : Green Blue as a dominant colors with a touch of Yellow and Red
Shape : Pear
Cut : Low Dome Cabochon
Clarity : Opaque
Brightness B1 - B5 : B3.6
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 : NONE
Origin : Lightning Ridge Opal Field, NSW Australia
---------------------------------------------------
Total Item Weight : 7.77 g
Metal Type : Silver
Metal Purity : 92.5 Sterling
Ring Size :
US 7 (17.3 mm)
Britain/Australia N1/2
Asia 14
Euro 54