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) 24 29 94 76
paris@sillam.com

 

 

 

Beverly Hills

The Peninsula Beverly Hills
9882 S. Santa Monica Blvd.
CA 90212
USA
Tel. +1 (888) 6 SILLAM
beverlyhills@sillam.com

 

Hong Kong

ifc mall

Shop 2034
Podium Level 2
Central, Hong Kong
Tel. (852) 2295 1025
hongkong@sillam.com