Provenire
The Atelier · Certificate of authenticity
PRV-2026-000002

Art Deco Diamond and Onyx Brooch
Cartier · c. 1925 · Paris, France
Platinum work, millegrain and the maker's marks accord with Cartier Paris, 1925–26; the archive confirms the 1926 ledger entry.
Examined and certified by Dr. Elias Brandt
ISSUED 10 JUNE 2026
Valid · in the registry
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