Coster Diamond Factory Amsterdam. Royal Coster Diamonds is the oldest still operating diamond polishing factory in the world. Royal Coster Diamonds is the oldest diamond polishing factory in the world.
Royal Coster Diamonds is the oldest diamond polishing factory in the world. Royal Coster Diamonds is famous for the highest level of craftsmanship for centuries. For questions about gifting and jewelry contact a sales professional.
From this drive for perfection the Royal 201 was born.
Famous for cutting and polishing renowed diamonds such as the Koh-I-Nor and the Star of the South and suppliers of diamond jewelry for many Royal Houses from all around the world. Royal Coster Diamonds is famous for the highest level of craftsmanship for centuries. Hundreds of thousands visitors come to see Coster Diamonds craftsmen at work every year. Royal Coster Diamonds is the oldest diamond polishing factory in the world.
