4.37ct Koroit Boulder Opal | #E204 Enamel origin: Columbia

origin: Columbia

This area does not cause discomfort when wearing the ring

83g Dimensions (inches) 0

likely vintage

average color grade: E-F-G

4.37ct Koroit Boulder Opal | #E204 Enamel origin: ColumbiaKoroit Boulder Opal Weight (carats) 4. 37cts Origin Koroit Mining District, Queensland, Australia Shape Freeform Dimensions (millimeters) 17. 56mm x 10. 08mm x 3. 81mm Dimensions (inches) 0. 7" x 0. 4" x 0. 2" Body Tone (+N1 to N9 ) NA Boulder Brightness ( 1 to 5+) B3. 5 Predominant Colors Green Blue Directionality of Fire Slightly Directional Treatments Enhancements None Suggested Purpose Pendant Ring Sku Number #E204 Additional Notes None