the imperial collectionA collection of 10 pieces that meets the highest standards of excellence


The ambroisana Emeralds

An exquisite platinum & 18kt yellow gold necklace set with 9 old-mine Colombian emeralds weighing 41 carats total and 131 old-European-cut diamonds weighing 79 carats total.


The Penthouse

654 Madison Avenue
22nd floor
New York, NY 10065

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