Our diamond patent story began in 1902 when Joseph Asscher created the original Asscher Cut. Since then, every generation of the Asscher family...

The Asscher Diamond Company chose Tolstraat 127, Amsterdam, to set up its factory with the building's massive windows that let...

The fates were aligned the day the Excelsior was discovered, aligned to ensure no one bar a handful of people...

The 3106-carat Cullinan remains the largest rough diamond of exceedingly rare quality ever discovered. Joseph Asscher collapsed backwards trying to cleave...

We care deeply about our planet and its citizens. We make good on that statement through our many efforts to...