Historic Carved Black Opal together with the book "The Story of the Gems". Lightning Ridge, New South Wales, Australia © 2002-2010 Bonhams 1793 Ltd Weighing approximately 29.23 carats and measuring 38.0 x 15.0 x 8.0 mm. Sold for $28,060 Carved with a...

A World-Class Gem-Quality Australian Black Opal—"The Stardust Opal". T-Bones Mine, Corcoran, Lightning Ridge, New South Wales, Australia © 2002-2010 Bonhams 1793 Ltd Weighing 14.40 carats and measuring 18.5 x 14.1 x 8.0mm. Sold for $39,650 Found in 1981,...