Diamond Upgrading

We are delighted to offer our customers an opportunity to upgrade their diamonds, within three years of purchase of any piece.  We simply subtract the cost of the initial stones from the upgraded stones’ price and charge the difference – uncomplicated upgrading, handled by masters.

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Paris

Four Seasons Hotel George V
31, Av. George V
75008 Paris
France
Tel. +33 (6) 18 35 88 88
paris@sillam.com

 

 

 

USA

The Residency Experience
8460 Santa Monica Blvd
CA 90069
USA
Tel. +1 (323) 6520359
office@sillam.com

by appointment only

 

Hong Kong

Room 811, Level 8, Tsimshatsui Centre 66 Mody Road
Kowloon                                               Hong Kong
Tel. (852) 3580 1159
hongkong@sillam.com

by appointment only