Opal Type : Australian Solid Dark Crystal Opal
Carat Weight : 0.52 ct
Size : 0.50 mm x 0.50 mm approx.
Color : Green Blue
Shape : Round
Cut : High Dome Cabochon
Clarity : Translucent
Brightness B1 - B5 : B3.7
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
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Total Item Weight : 4.76 g
Metal Type : Silver
Metal Purity : 92.5 Sterling
Ring Size :
US 7.5 (17.7 mm)
Britain/Australia O1/2
Asia 15
Euro 55.5