Platinum Diamond and Ruby Brooch Circa 1930's

Circa 1930s platinum, diamond, and ruby brooch that separates into clips, serial # 67912, comprised of two circular motifs framing a central design, set with 32 round diamonds (approx .90cts), 4 baguette diamonds (approx.45cts), and 6 sugarloaf cabochon Burmese rubies (approximately 2.45 cts). Made by Oscar Heyman, and accompanied by a Certificate of Authenticity dated November 22, 2023, and an AGL report #1133131stating that the rubies are of Burmese origin, unheated.