The top lot is the Red Dragon, a 6.43-carat Burmese ruby and diamond ring estimated at $1 million to $1.5 million. The exceptional purplish-red color is natural (many rubies are heat-treated). It is ...
A rare 10.05-carat ruby will be the lead item at Christie’s Hong Kong Magnificent Jewels sale on November 29. Known as the “Ratnaraj” (“King of Precious Stones” in Sanskrit), the auction house says it ...
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