This striking brooch is masterfully crafted in platinum and accented with a detachable 18K yellow gold border, showcasing the bold geometry and refined elegance characteristic of the era. The brooch features an array of dazzling diamonds: 1.33 carats of pear-shaped diamonds, 2.28 carats of marquise-cut diamonds, 1.30 carats of brilliant-cut diamonds, and 2.08 carats of baguette diamonds, all set in a sweeping, stylized design. Weighing 21 grams without the gold border and 40.66 grams in total, this convertible piece is a rare and dramatic example of luxury and craftsmanship.