Untouched Blue/Green Dark base knobby opal rough 6.00cts Lightning Ridge Material to gamble 18x14x6 Lot B4-A746 Premium 75ct Coober Pedy seam opal

75ct Coober Pedy seam opal boasts vivid green and yellow fire across a clean light base

Coober Pedy is world-renowned for its opals

Lot Title: Lighting Ridge Knobby Pair – 23

Carat Weight: 230cts

Untouched Blue/Green Dark base knobby opal rough 6.00cts Lightning Ridge Material to gamble 18x14x6 Lot B4-A746 Premium 75ct Coober Pedy seam opalLot Title#Grade BC Gamble Untouched Blue Green Knobby Opal Rough (Lightning Ridge) Lot NumberB4 A746 DetailsWeight: 6. 00 ctSize: 18 x 14 x 6 mmOrigin: Lightning Ridge, AustraliaType: Dark Base Knobby Opal RoughUse: Cutting RoughColour: Blue green DescriptionUntouched Lightning Ridge knobby opal rough with hints of blue and green on a dark base. Nothing has been ground full gamble with potential hiding under the skin. Shape and structure suggest a