Opal Type : Solid Australian Black Opal
Carat Weight : 0.74 ct
Size : 5.73 mm x 6.81 mm approx.
Color : Green Blue
Shape : Oval
Cut : Medium Dome Cabochon
Clarity : Translucent
Brightness B1 - B5 : B3.7
B1:Faint B2:Dull B3:Bright B4:Very Bright B5:Brilliant
Body Tone N1-N9 : N4 Black Opal
N1-N4:Black Opal N5-N6:Dark Opal N7-N9:Light Opal
Treatment : No Enhanced
Origin : Lightning Ridge Opal Field, NSW Australia.
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Total Item Weight: 4.46 g
Metal Type: Silver
Metal Purity: 92.5 Sterling
Ring Size:
US 8.25 (18.3 mm)
Britain/Australia Q
Asia 16.5
Euro 57