Identification
Photo reference
2 uploaded photos
Overview
The item is a floral brooch featuring milky blue navette crystals and aurora borealis (AB) rhinestones set in gold-tone metal. The presence of AB stones is a specific diagnostic that dates the piece to 1955 or later, as this iridescent finish was introduced by Swarovski in collaboration with Christian Dior in 1955. The overall construction and design are typical of mid-century costume jewelry.
Story
Aurora Borealis rhinestones were introduced in 1955 through a collaboration between Swarovski and Christian Dior, firmly dating this piece to the mid-to-late 20th century. During the 1950s and 1960s, countless costume jewelry manufacturers produced unsigned floral spray and wreath brooches to meet booming middle-class demand. Without a maker's mark, this piece is attributed to the broader mid-century fashion jewelry industry.
Maker / Origin
Unattributed
Condition & Value
Value in this tier relies heavily on the stones being bright and the AB coating remaining intact. Any dulling of the foil backs, verdigris on the gold-tone metal, or scratching on the milky crystals would immediately push the value to the lower end of the range.
Full Research
Sold comps, value drivers, and venue guidance pulled from recent auction results.
The secondary market for unsigned mid-century costume jewelry is saturated but active, driven by casual collectors, vintage fashion enthusiasts, and crafters. Pieces featuring Aurora Borealis (AB) rhinestones and milky glass (often called 'milk glass' or 'opaline' glass in costume jewelry) remain popular for their retro aesthetic. Sales are highest on platforms like Etsy and Poshmark where curation adds value, while eBay tends to serve as a high-volume, lower-price clearinghouse.
▲ Presence of Aurora Borealis rhinestones provides a desirable mid-century aesthetic and firm post-1955 dating.
▲ Milky blue crystals are a popular colorway that commands a slight premium over standard clear rhinestones.
▲ Floral motifs are a perennial favorite and highly wearable in the vintage costume jewelry market.
▼ Lack of a maker's mark caps the value ceiling, preventing it from reaching the premium designer tier.
▼ Unverified condition of the stone foil-backs — moisture damage or 'dead' stones will severely impact resale appeal.
▼ Unverified clasp functionality — a bent or loose rollover catch would require repair, dropping the piece to craft-lot value.
Best Venue
List on a retail-focused vintage platform like Etsy or Poshmark to maximize return, pricing around $30-$35 with room for offers. Ensure the piece is gently cleaned with a dry, soft brush to maximize the sparkle of the AB stones before photographing. If a quick sale is preferred, bundle it with other mid-century brooches for an eBay auction.
Upside Potential
If the brooch is exceptionally large (over 3 inches) or if close inspection of the reverse reveals a hidden designer hallmark (such as a faint 'Weiss' or 'Kramer' stamp), the value could push toward the $60-$80 range seen in premium comps.