Explore collectible vintage designers

Coro began in New York in the early 1900s and grew into one of the largest costume jewelry makers in the United States, with a major Rhode Island manufacturing operation. The house produced a wide range of styles, from playful figural pieces to refined mid-century classics, and became especially known for collectible lines such as Corocraft and inventive technical designs like Duettes and Tremblers.

Coro remains a cornerstone brand for collectors because its catalog spans decades, price points, and design moods while keeping strong vintage identity. Signed examples continue to attract both new and advanced buyers for their wearable construction, recognizable period styling, and broad range of collectible motifs from floral sprays to tailored geometric pieces.

Oleg Cassini (1913-2006), born in Paris and raised in Italy, built an international fashion career that bridged Hollywood glamour and American political style. After moving to the United States in 1936, he designed for major film studios and dressed high-profile stars, then became Jacqueline Kennedy's principal designer at the start of the White House years. His polished silhouettes and clean lines helped define the globally recognized "Jackie look" of the early 1960s.

For vintage collectors, Cassini pieces are valued for their refined mid-century elegance, wearable structure, and strong formal-evening presence. His label also expanded through bridal and licensed fashion lines, making the name broadly recognizable across decades while retaining couture-inspired styling roots.

Sherman is one of the most collectible names in Canadian costume jewelry, with production centered in Montreal in the post-war decades. Collectors value the house for richly layered, hand-set stones, strong color stories, and durable plated settings that still present beautifully today.

Signature Sherman pieces are often associated with precise stone alignment, dimensional construction, and dramatic evening sparkle. Signed examples marked "Sherman" remain especially sought after by vintage buyers who want bold mid-century glamour with dependable craftsmanship and wearability. The line is especially admired for statement necklaces, coordinated sets, and high-contrast crystal palettes that photograph beautifully while still reading refined in person.

Some of the most compelling vintage jewelry was never signed, yet still reflects exceptional design thought, handwork, and craftsmanship. These pieces were created by skilled makers whose names may be lost to time, but whose artistry remains visible in proportion, construction, stone setting, and finish.

At Mavis and Mae, unsigned pieces are never treated as filler. They are carefully curated, closely examined for wear, damage, and structural issues, and selected only when they meet our quality standard for presentation and longevity. Every unknown piece is hand-picked by an experienced collector-curator with decades of sourcing, with the goal of giving each treasure a true forever home and another chance to shine.

Warner is a well-known American mid-century costume jewelry house, with collector references typically placing the company in New York in the early 1950s (often cited as 1953). The line became especially recognized for rich rhinestone color, strong faceting, and high-contrast settings that helped stones read vividly in evening light. Signed examples most commonly appear as "Warner" with a copyright mark and are frequently sought after in statement-era vintage collections.

Collectors often associate Warner with dramatic palette choices, prong-set construction, and signature finishes such as dark japanned metal paired with bright stones. The brand is particularly appreciated by buyers who want bold 1950s-1960s glamour with clearly signed pieces and dependable visual impact, especially in brooches, earrings, bracelets, and coordinated sets.