Magnificent Art Deco jabot brooch by Boucheron, Paris, circa 1930, crafted in solid platinum. Embellished with 58 European round brilliant diamonds (4.16 ct total, E/F color, VS clarity) in French pavé and four-prong settings. Measures 70 x 19 mm (2.76 x 0.75 in), weighing 10.95 grams. Fitted with concealed stick pin and hinged pressure lock. Stamped with French assay marks, maker’s maitre cartouche, and signed “BOUCHERON PARIS.” 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.