8 juin 2020
Stunning Large Blue Green Opal, Lighting Ridge, New South Wales, Australia
Lot 52. 26.01 carats Stunning Large Blue Green Opal, Lighting Ridge, New South Wales, Australia. Estimate US$ 40,000 - 50,000 (€ 35,000 - 44,000). © Bonhams A large and impressive "nobby" opal (nodule) with a black base color and a vivid broad rolling...