Our diamond patent story began in 1902 when Joseph Asscher created the original Asscher Cut. Since then, every generation of the Asscher family at Royal Asscher has contributed to the growth of our family of patented cuts.

The Asscher Diamond Company chose Tolstraat 127, Amsterdam, to set up its factory with the building's massive windows that let in ample light being the main draw for its selection. Over 150 years later, this iconic castlesque monument remains the House of Royal Asscher.

The fates were aligned the day the Excelsior was discovered, aligned to ensure no one bar a handful of people knew of its existence. On the day Excelsior was found, the contract between the mining company and the syndicate of firms in London that purchased its diamonds expired.

Spring has a reputation of putting love on overdrive with new romances and proposals registering off the chart in the pre-summer months. But as we cross the midway point of Autumn, engagements and marriages remain quite the popular activity. Could it be that love is a mood for all seasons?

The 3106-carat Cullinan remains the largest rough diamond of exceedingly rare quality ever discovered. Joseph Asscher collapsed backwards trying to cleave the diamond for the British Crown. And a myth grew from that moment…

We care deeply about our planet and its citizens. We make good on that statement through our many efforts to ensure that only the most beautiful and ethical diamonds are offered to you.