Topaz and marquise diamond coronet cluster ring. Set to the centre with a cushion shape scissor cut natural unenhanced topaz in an open back claw setting with an approximate weight of 10.00 carats, encircled by a single row of twenty four outward pointed marquise shape brilliant cut diamonds in open back half rubover settings, with a combined approximate weight of 1.20 carats, to an impressive dress ring featuring curving claws, polished edges, a linear outward spray openwork gallery and open backholing, flowing to split tri-part shoulders and terminating in a ridged shank. Marked 18 carat white gold, signed 'LAB', English, circa 1980.
