Mauboussin 18K Yellow Gold 4.50ct Diamond, Onyx, Pearl Brooch
Updated August 6, 2026
| Lot number | 0198B |
| Estimate | $10,000 - $11,000 |
| Opening bid | $1 |
| Category | Jewelry & Watches |
| Auction | $1 Start Luxury Brands Antique Jewelry |
| Date | August 9, 2026 at 1:15 PM EDT |
| Auction house | Eastern European Art Gallery Inc |
| Location | Broomall, Pennsylvania |
Mauboussin has since built a reputation for defying rigid jewelry norms. In this 18K yellow gold brooch, a spiral form hosts 4.50 carats of diamonds in mixed cuts. Each diamond is secured with an
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