GROUP OF THREE COLORED STONE & DIAMOND BROOCHES, CA 1930. The diamond brooch set with old European-cut diamonds weighing approx 2.25 cts, mounted in platinum; the amethyst & diamond brooch set with calibré-cut amethysts & old European-cut & single-cut diamonds weighing approx 1.60 cts, mounted in platinum; & the sapphire & diamond brooch set with marquise-shaped, old European-cut & single-cut diamonds weighing approx 1.00 ct, mounted in platinum
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