7.23ct Lightning Ridge Semi-Black Crystal Opal | #E273 Turquoise then indigo

then indigo

The Stone: Lightning Ridge Black Opal

The Center Stone: Coober Pedy White Crystal Opal

dimensions: 8

29mm Origin Blue Mountain

7.23ct Lightning Ridge Semi-Black Crystal Opal | #E273 Turquoise then indigoWeight 7. 23 carats Origin Lightning Ridge Region, NSW, Australia Shape Freeform Triangle Cabochon Dimensions (millimeters) 20. 45mm x 11. 15mm x 7. 00mm at thickest part Dimensions (inches) 081 x 0. 44 x 0. 28" at thickest point Body Tone (+N1 to N9 ) N5 Brightness ( 1 to 5+) B6 Predominant Colors Semi black crystal opal with blue and purple overtones and green undertones Directionality of Fire Slightly Directional Treatments Notes A few small chips