Semi Black Stack of dark base Seam opals to cut 20.75cts Bright Bars lots of blues to expose 18x14x9mm to 12x8x4mm Lot B4-A814 Premium A fantastic opportunity to work

A fantastic opportunity to work with a large piece of premium Australian opal

Grade C — some colour hints visible

Gorgeous Reds & Multifires on Black Seam Rough Opals – 28

Lot: B4-A239Size: 23 x 10 x 8mmTotal Weight: 8

Lot Title#Grade A Rub – Broad Zones of Bright Colour Ready to Finish (Lightning Ridge)

Semi Black Stack of dark base Seam opals to cut 20.75cts Bright Bars lots of blues to expose 18x14x9mm to 12x8x4mm Lot B4-A814 Premium A fantastic opportunity to workLot Title#Grade AB Cutters Semi Black Seam Opal Stack with Bright Blue Bars (Lightning Ridge) Lot NumberB4 A814 DetailsWeight: 20. 75 ct (parcel)Size Range: 18 x 14 x 9 mm to 12 x 8 x 4 mmOrigin: Lightning Ridge, AustraliaType: Semi Black Seam Opal Rough (Stacked Pieces)Use: Cutting RoughColour: Bright blue bars DescriptionStacked parcel of semi black Lightning Ridge seam opals showing bright bars and plenty of blue fire to expose. A mix of sizes and