A very rare, 21.52-carat Colombian “no oil” emerald-and-diamond ring will lead Phillips' sale of jewels and jadeite in Hong Kong next month, with a presale estimate of between HK$7.5 million and ...
A 21.52-carat untreated Colombian emerald fetched nearly $1.2 million at Phillips Hong Kong Jewels and Jadeite July auction. The gem sold within estimates (all sales include buyer’s premium).
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