4.96ct Quilpie Boulder Opal | #E257 Ametrine A Koroit Boulder Opal in

A Koroit Boulder Opal in a Vintage Solitaire Ring

42cts Dimensions (millimeters) 19

Hand-Polished Opalized Shell

91cts Origin Koroit

4.96ct Quilpie Boulder Opal | #E257 Ametrine A Koroit Boulder Opal inYour browser does not support the video tag. Weight 4. 96 carats Origin Quilpie Region, Queensland, Australia Shape Oval Cabochon Dimensions (millimeters) 11. 82mm x 10. 90mm x 4. 90mm thick Dimensions (inches) 0. 47" x 0. 43" x 0. 19" thick Body Tone (+N1 to N9 ) N5. 5 Brightness ( 1 to 5+) B2. 50 Predominant Colors Green and Blue overtones with Orange and Yellow undertones Directionality of Fire Somewhat Directional Treatments Enhancements None