ART DECO BARRETTE BROOCH In platinum and yellow gold, with chased decoration, set with a drop of six round old-cut diamonds and centred on a beautiful oval ruby weighing 1.77 ct. Circa 1925. A diamond, platinum and 18k gold Art Deco brooch set with an oval step cut ruby weighing 1,77 ct. Circa 1925. S.S.E.F. certificate attesting: origin Burma (Myanmar), no heat modification. C.G.L. certificate : origin Burma (Myanmar), no heat. RC : Dimensions of ruby: approx. 8.4 x 5.8 x 3.6 mm. Brooch length: approx. 8 cm. Gross weight: 11.2 g (Pt - 950 for the body, 18k - 750 for the pin).