Paris, France, Art Deco (c. 1940). Rare three-dimensional convertible clip/pendant-brooch by René Boivin, crafted in 18K yellow gold with brushed and polished finishes, fitted with concealed hinge pin bars for brooch wear and a pendant bar. Rubies: 15 round cabochon/bullet-cut Burmese rubies totaling approx. 5.45 cts, mounted in flush star settings (natural vivid red). Weight 24 g (15.40 dwt). Measures 30 x 24 x 19 mm (1.18 x 0.95 x 0.75 in). Hallmarks: French marks including Boivin maker’s mark and eagle head for 18K gold. Very good conditions. All our diamonds and colored gemstones are naturally earth-mined. Any synthetic (lab-grown) stones will be clearly indicated in the description. Upon Request, Auction House may provide an appraisal. This will carry an additional cost. Appraisals are made by our in house GIA certified Gemologist.