13.09ct Lightning Ridge Black Opal | #E126 Amethyst circa 1990's

circa 1990's

Sterling silver tennis bracelet set with treated pink Ethiopian opals

natural patina

Lander County

California Shape polished slice Material Grade AA Specimen Colors purplish pink and yellow Treatments / Enhancements none Mohs Hardness 7 to 7

13.09ct Lightning Ridge Black Opal | #E126 Amethyst circa 1990'sLightning Ridge Black Opal Weight (carats) 13. 09cts Origin Lightning Ridge, Australia Shape Oval Dimensions (millimeters) 23. 52mm x 15. 08mm x 5. 60mm Dimensions (inches) 0. 9" x 0. 6" x 0. 2" Body Tone (+N1 to N9 ) N3 Brightness ( 1 to 5+) B2. 5 Predominant Colors Blue Only Directionality of Fire Slightly Directional Treatments Enhancements None Suggested Purpose Pendant Ring Sku Number #E126 Additional Notes Natural gypsum webbing, referred to as