Rhinestone rose flower brooch (unauthenticated)

This is a decorative costume jewelry piece taking the form of a sculptural rose flower with an attached stem and leaves. The brooch is held in an open hand, indicating a medium to large scale for a pin, measuring approximately three to four inches in length. The primary materials appear to be a yellow-toned base metal, possibly brass or a gold-plated alloy, adorned with numerous small, round pink and aurora borealis (AB) rhinestones pavé-set across the petals and leaves. The center of the rose features unadorned, polished metallic swirls that mimic unfurling petals. The rhinestones exhibit a multicolored iridescent shimmer under light, which is characteristic of treated crystal glass popular in mid-century and later costume jewelry. There are no visible maker's marks, stamps, or signatures apparent in this view, as the reverse side with the pin mechanism is not shown. The overall condition appears well-preserved with intact stones and minimal visible surface wear to the metal plating. The styling and use of pavé-set colored crystals are consistent with mid-to-late 20th-century costume jewelry manufacturing techniques, though without a visible hallmark, the exact maker and era remain unverified. The identification rests purely on the visual characteristics of the form and materials.

Based on the visual evidence available in the photograph, I can observe a sculptural rose flower brooch featuring a yellow-toned metal base and pavé-set pink and aurora borealis rhinestones. However, I can't verify from a photo the exact metal composition, the presence of any maker's marks on the reverse, or the quality of the plating. A physical inspection would be needed to confirm whether the stones are hand-set or glued, and whether there is any wear or loss to the gold-toned finish. The estimated value range of $45 to $90 assumes the piece is a quality mid-20th-century costume jewelry item in well-preserved condition. The market for vintage costume jewelry with colorful crystal work remains steady among collectors of retro accessories, though unsigned pieces generally command modest prices compared to those with documented designer hallmarks. Because this piece lacks a visible signature or maker's mark in the provided view, its attribution is entirely unverified. If physical inspection were to reveal that this piece is a modern reproduction, a mass-market replica, or simply made in the style of mid-century costume jewelry without vintage provenance, the value would likely decrease to the $15–$30 range. To establish a more precise evaluation and assess potential maker attribution, I would recommend an in-person examination by a vintage jewelry specialist to check for hallmark stamps, test the metal composition, and evaluate the overall craftsmanship.