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 Gamble Grade:| 🎲 Gamble Grade

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

A great pair for cutters who love precision work

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

Great choice for jewellers or collectors chasing a clean

DetailsWeight: 29

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 Gamble Grade:| 🎲 Gamble GradeLot 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