0.73ct Lightning Ridge Black Opal | #E12 Tourmaline signed "A Jensen" by the

signed "A Jensen" by the Navajo artist

31g Dimensions (millimeters) 9

25" Origin Czech Republic Shape faceted oval checkerboard cut Material Grade AAA Colors dark olive green Mohs Hardness 5

26mm Origin Koroit Mining District

a crack runs through the top of the stone through what appears to be a matrix plane

0.73ct Lightning Ridge Black Opal | #E12 Tourmaline signed "A Jensen" by theLightning Ridge Black Opal Weight (carats) 0. 73cts Origin Lightning Ridge, Australia Shape Oval Dimensions (millimeters) 8. 31mm x 6. 15mm x 2. 04mm Dimensions (inches) 0. 33" x 0. 25" x 0. 1" Body Tone (+N1 to N9 ) N4 Brightness ( 1 to 5+) B3 Predominant Colors Blue Green Directionality of Fire Somewhat Directional Treatments Enhancements None Suggested Purpose Ring Sku Number #E12 Additional Notes None