Description: Platinum Art Deco Circle Brooch, from circa 1930s; custom design in the style of Cartier with channel and prong set diamonds. Totaling 66 diamonds (largest 2.3mm, smallest 1.3mm), 27 French cut emeralds, and 16 French cut sapphires, weight: 7.82g, .251ozt. Dimensions are: 1 1/4 inches diameter with an additional 1/2 inch drop. All measurements are approximate.