GENEVA, May 12 (Reuters) - A Burmese ruby weighing 25.59 carats sold for a world record 28.25 million Swiss francs ($30.42 million) at Tuesday's auction that saw strong demand for coloured stones and ...
The front collet-set with an emerald cameo depicting the profile of a Renaissance youth, within a border of matte fluted rock crystal, accented by cabochon rubies, a similarly shaped emerald and ...
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