12.17ct Koroit Boulder Matrix Opal | #E191

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Koroit Boulder Matrix Opal Weight (carats) 12.17cts Origin Koroit Mining District, Queensland, Australia Shape Oval Dimensions (millimeters) 22.41mm x 12.80mm x 5.16mm Dimensions ( inches) 0.9" x 0.5" x 0.2" Body Tone (+N1 to N9-) NA - Boulder Brightness (-1 to 5+) B1.5 Predominant Colors Blue Directionality of Fire Somewhat Directional Treatments / Enhancements None Suggested Purpose Pendant/Ring Sku Number #E191 Additional Notes None Show more