BIRKS, MULTICOLOR SAPPHIRE, SPINEL AND DIAMOND BROOCH Containing four cushion mixed cut yellow sapphires, three cushion mixed cut pink sapphires and one cushion mixed cut spinel measuring 10.34 x 7.05 x 4.34 mm to 8.47 x 6.23 x 4.54 mm and 24 single and round brilliant cut diamonds weighing approximately 1.10 carats total. Mounted in yellow gold and platinum. Stamp: BIRKS 14K PLAT DEP (partially obscured). 12.85 dwt. AGL, 2015, Report number CS71152, four Natural Yellow Sapphires, three Natural Pink Sapphires and one Natural Spinel, Ceylon (Sri Lanka), No evidence of heating or clarity enhancement