Lightning Ridge Dark Crystal Knobby opal formation rough 3.40cts Bright Gorgeous blues to gamble 16x11x4mm Lot B4-A007 wk_end_auction with some colours visible throughout

with some colours visible throughout

Natural knobby formation

Lot Title: Coober Pedy Seam Opal Rough – 7

Carat Weight: 38

Place your bids now on Lot B4-A033 and uncover the beauty of this Lightning Ridge treasure

Lightning Ridge Dark Crystal Knobby opal formation rough 3.40cts Bright Gorgeous blues to gamble 16x11x4mm Lot B4-A007 wk_end_auction with some colours visible throughoutAuction Listing for Bid 4. com Lot Title: Lightning Ridge Dark Crystal Knobby Opal Formation Rough 3. 40cts Bright Blues Lot Number: B4 A007 Details: Origin: Lightning Ridge, Australia Type: Dark Crystal Knobby Opal Formation Rough Carat Weight: 3. 40cts Dimensions: 16x11x4mm Features: Bright, gorgeous blue tones Natural knobby formation, perfect for gambling or cutting Description: This 3. 40ct dark crystal knobby opal formation rough from Lightning