Brazilian imperial golden topaz and diamond cluster ring with an oval mixed cut topaz surrounded by a border of 14 brilliant cut diamonds in claw setting on 18ct yellow gold shank, size M.Condition report: Good conditionmensurate with age, the topaz measures approximately 7.5mm x 5.5mm x 4.4mm, the shank is engraved 1.52 possibly suggesting the carat weight of the topaz. Estimated total diamond weight approximately 0.28cts, all well matched stones of good colour and clarity. London hallmarks for 1988. Gross weight approximately 3.98 grams.