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A BELLE EPOQUE DIAMOND AND EMERALD RING
The two marquise-cut diamonds set vertically with calibré-cut emeralds between, to the diamond trefoil shoulders and plain hoop, mounted in platinum and gold, circa 1915, with French assay mark for gold, no. 0439 to the hoop, with blue case by Boucheron
The two marquise-cut diamonds set vertically with calibré-cut emeralds between, to the diamond trefoil shoulders and plain hoop, mounted in platinum and gold, circa 1915, with French assay mark for gold, no. 0439 to the hoop, with blue case by Boucheron