Vintage oval black onyx ring set in a decorative silver-tone or sterling silver mounting with marcasite accents. This piece features a classic Art Deco-inspired design with a large polished cabochon stone surrounded by textured detailing.

The ring shows age and wear consistent with vintage use, including some missing or worn marcasite stones and surface patina. Despite this, it retains strong visual appeal and makes a bold statement piece or affordable vintage accessory.

Perfect for collectors of vintage jewelry, Art Deco styles, or those looking for a unique ring with character.