Vintage Platinum Old European Diamond & Onyx Ring

This striking vintage ring is crafted in platinum and features a bold geometric design with 1.25 carats of old European-cut diamond, accented by richly contrasting black onyx. Entirely handmade, the piece reflects the elegance and craftsmanship of early 20th-century design. Weighing 9.40 grams and sized at 7, it offers both substance and sophistication—an enduring statement ring for collectors of vintage fine jewelry. Bold and collectible.