This Art Deco antique brooch, crafted in platinum, showcases intricate detailed filigree craftsmanship. The centerpiece is a .76-carat Old European cut diamond with SI1 clarity and a warm K color. Surrounding the diamond are 3.88 carats of channel set French cut blue sapphires, adding a vibrant royal blue contrast. The brooch is finished with delicate milgrain edges, reflecting the fine detail typical of the Art Deco period.