Lightning Ridge Black Base knobby opal split 13.00cts Some Blue colours 20x11x6mm & 20x9x6mm Lot B4-A211 Premium A solid piece with great

A solid piece with great potential for slicing or facing out

and the crystal nature gives it a nice glow when held to the light

Grade A to B – Cutter’s Gamble — promising material with top-grade potential for skilled hands

00ct seam opal rough from Lightning Ridge presents a solid grey base with Blue colours peeking through

Lot Title: Gorgeous Dark Base Seam Opal to Cut – 6

Lightning Ridge Black Base knobby opal split 13.00cts Some Blue colours 20x11x6mm & 20x9x6mm Lot B4-A211 Premium A solid piece with greatLightning Ridge Black Base Knobby Opal Split 13. 00cts Lot: B4 A211Size Range: 20 x 11 x 6mm & 20 x 9 x 6mmTotal Weight: 13. 00 caratsOrigin: Lightning Ridge, Australia This black base knobby opal split from Lightning Ridge features some blue colors showing, making it a great option for those looking to cut or explore its potential. With its naturally split structure, this opal offers an exciting opportunity for lapidaries to bring out its fire.