12.26ct Lightning Ridge Black Opal | #E238 Zircon approximate mandolin measurements: 1

approximate mandolin measurements: 1

The Setting: Prong Set Cluster Ring

The "Stone": Elk Tooth

custom modified round brilliant cut

and orange fire

12.26ct Lightning Ridge Black Opal | #E238 Zircon approximate mandolin measurements: 1Your browser does not support the video tag. Weight 12. 26 carats Origin Lightning Ridge Region, NSW, Australia Shape Freeform Cabochon Dimensions (millimeters) 29. 11mm x 11. 39mm x 6. 19mm at thickest part Dimensions (inches) 1. 15 x 0. 45 x 0. 24" at thickest part Body Tone (+N1 to N9 ) N3 Brightness ( 1 to 5+) B1 Predominant Colors Semi black crystal opal with blue overtones Directionality of Fire Highly Directional Treatments Enhancements None