A collection of four unmounted black opals Comprising: three oval-shaped black opals and one triangular-shaped black opal, weighing 2.69, 4.79, 7.00 and 7.90 carats respectively (4) Sold for £9,600 (Copyright © 2002-2008 Bonhams 1793 Ltd., Images and...

A pair of art deco black opal and diamond pendent earrings, circa 1925 Each claw mounted drop-shaped black opal, suspended from an articulated surmount composed of collet mounted old brilliant-cut diamonds spaced by two millegrain-set single-cut diamond...