6.16ct Koroit Boulder Opal | #E102

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Koroit Boulder Opal Weight (carats) 6.16cts Origin Koroit Mining District, Queensland, Australia Shape Oval Dimensions (millimeters) 17.13mm x 7.91mm x 5.21mm Dimensions (inches) 0 .66" x 0.3" x 0.2" Body Tone (+N1 to N9-) N2 - Boulder Brightness (-1 to 5+) B3 Predominant Colors Blue Directionality of Fire Nondirectional Treatments / Enhancements None Suggested Purpose Ring/Pendant Sku Number #E102 Additional Notes None Show more