Founded by Ralph DeMario in New York during the late 1940s, DeMario Jewelry specialized in intricate, romantic costume designs made with baroque pearls, hand-set rhinestones, and rich metal filigree. While the brand was active for a relatively short time—until the early 1960s—its artistic and feminine designs are still prized today for their quality and opulence.

DeMario is known for lavish, layered pieces with old-world flair. Expect to see filigree stampings, wired-in beads and pearls, and dramatic floral or scroll motifs. The craftsmanship was high, with most stones and elements hand-wired rather than glued. Their use of pearls and ornate backings adds a sense of luxury rarely seen in mid-century costume jewelry.

Look for a “DeMario” signature stamped on a cartouche or directly on the metal backing. Because the brand operated for just a couple of decades, their signed pieces are rarer and especially collectible. Construction style—like wired-in components and rich gilt metal—is also a helpful clue when identifying unsigned work.

DeMario pieces offer bold elegance—ideal for weddings, evening wear, or vintage-inspired styling. Their necklaces and earrings in particular pair beautifully with structured fabrics or formal silhouettes. For collectors, DeMario represents a brief but brilliant chapter in American costume jewelry history.