Stunning Art Deco 14K white gold and platinum diamond filigree brooch pin. Featuring a superb platinum top with intricate filigree and milgrain. Set with three round brilliant cut diamonds of SI2-SI3 clarity, J-K color and weighing an estimate 0.30 carats total. Having a ported back, allowing light to pass freely through the diamonds, resulting in greater brilliance and shine as the pin is worn. The clasp is marked 14K & PL, as well as 3M, perhaps the mark of the maker. In overall good vintage condition. Measures 2" length x 1 1/8" width. Weighs 4.3 grams.