Classic Black Opal--"The Black Prince". Lightning Ridge, New South Wales, Australia. Photo Bonhams

Many dark gray opals are incorrectly called "black opals". The present opal is one of these rare, true black gems. A rich and unique floral pattern play-of-color graces the surface, hovering like a hologram. Predominating in true reds with secondary splashes of orange, yellow, green and electric blue, with midnight black potch to the reverse. This is an important, gem-quality, named opal of considerable size, worthy of consideration by the most serious collector. Weighing approximately 60.46 carats and measuring 40.0 x 26.5 x 8.0mm. Sold for US$ 134,500