Nice Sized Blue on Black seam opal rough 19.75cts Good zone of colour showing through skin in bar to cut or carve 24x20x8mm Lot B4-A729 wk_auction Description:This small but striking Coober

Description:This small but striking Coober Pedy opal doublet features bright green and blue fire in a clean

Gamble Grade:| 🎲 Gamble Grade C (Gamble) | Bright red/orange bling showing – unknown depth and spread

Features: Flat opal with a stunning bar of bright blue fires

Red fire is highly sought after

Nice Sized Blue on Black seam opal rough 19.75cts Good zone of colour showing through skin in bar to cut or carve 24x20x8mm Lot B4-A729 wk_auction Description:This small but striking CooberLot TitleBlue on Black Seam Lightning Ridge Rough with Cuttable Bar Lot NumberB4 A729 DetailsWeight: 19. 75 ctSize: 24 x 20 x 8 mmOrigin: Lightning Ridge, AustraliaType: Seam Opal RoughUse: Cutting CarvingColour: Blue on black base DescriptionNice sized seam opal rough from Lightning Ridge with blue fire on a black base. A solid zone of colour is showing through the skin, following a promising bar across the stone. Great size and proportion for