RENÉ BOIVIN Diamond and Amethyst Brooch, ca. 2005 Of umbel flower design, decorated with circular-cut amethysts in various shades of violet, enhanced with a circular-cut diamond accent, mounted in oxidized 18K gold, diameter 7.5 cm. Signed 'René Boivin,' numbered 1/1 and dated. With French assay marks

RENÉ BOIVIN Diamond and Amethyst Brooch, ca. 2005 Of umbel flower design, decorated with circular-cut amethysts in various shades of violet, enhanced with a circular-cut diamond accent, mounted in oxidized gold

DIAMOND AIGRETTE, CIRCA 1890, an ornament designed as a shooting star, set with old European-cut, single-cut and rose-cut diamonds, mounted in platinum and gold

DIAMOND AIGRETTE, CIRCA an ornament designed as a shooting star, set with old European-cut, single-cut and rose-cut diamonds, mounted in platinum and gold

Hemmerle brooch in white gold, yellow and copper with sapphires and diamonds.

Hemmerle mushroom brooch in white gold, yellow gold, and copper, with sapphires and diamonds.

Jewellery Theatre - Caravaggio Collection

Cognac diamonds, sapphires, tsavorite garnets, and gold pendant. By Moscow Jewellery Theatre Co.

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