Sterling Silver, Black Onyx and Marcasite Geometric Brooch
Updated August 8, 2026
This auction ended on August 20, 2026.
See upcoming auctions from Coral Gables Auction or current jewelry & watches auctions.
| Lot number | 0240 |
| Estimate | $200 - $300 |
| Opening bid | $50 |
| Category | Jewelry & Watches |
| Auction | Fine & Decorative Arts Online Auction #137 |
| Date | August 20, 2026 at 1:00 PM EDT |
| Auction house | Coral Gables Auction |
| Location | Coral Gables, Florida |
Crafted in sterling silver, this geometric brooch features two polished black onyx cabochons accented by marcasites in an openwork floral and geometric design. The brooch is fitted with a pin back

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