Royal Coster Diamonds is the oldest diamond polishing factory in Amsterdam. Located at the Museum Square between the Rijksmuseum (national museum) and the Van Gogh museum we are the perfect location for groups of all sizes. Ask for our attractive incentive/reimbursement program for more information.
At Royal Coster Watches we sell high-end Swiss watches. In the heart of our 4 monumental villa’s it is a beacon of Haute Horlogerie with 3 of our rooms dedicated to the watches from the best Swiss manufactures.
Diamonds & Gemstones