By invitation · Est. MMXXVI

Provenire

The Atelier · Certificate of authenticity

PRV-2026-000002

PV
Art Deco Diamond and Onyx Brooch

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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