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The history of the Asscher cut diamond – loved by Pippa Middleton

There are many different shapes of diamond used in jewellery and each different shape, or cut as they’re referred to in the industry, has its own history. The Asscher cut is no different, with an interesting story behind its invention, popularity, decline, and recent re-popularisation. Although it’s not currently one of the best-known diamond cuts, the Asscher cut’s history is rich and is becoming increasingly popular with celebrities and royals.

Pippa Middleton has a stunning Asscher cut engagement ring with a stunning 3.5ct stone, which is no doubt of very high quality. It’s surrounded by a pave-set halo of diamonds and the geometrical design offers an elegant vintage style.

Asscher cuts look similar to emerald cuts with the key difference being that they are square, as opposed to rectangular. This cut features large step facets and a high crown that produces a brilliance unlike any other diamond shape.

READ MORE: How does Pippa Middleton’s engagement ring compare to Kate’s?

What is a Royal Asscher cut diamond?

Also known as the square emerald cut, Asscher cut diamonds are roughly square in shape when viewed from above but have cut corners for more light to enter the diamond. They typically have 50 or 58 facets and their ideal length to width ratio is 1 to 1.04. Because of their many facets, high crown, and depth, they can produce outstanding brilliance and create a ‘hall of mirrors’ effect.

When was the Asscher cut invented?

The Asscher cut was invented in 1902 by Joseph Asscher, the artisan diamond cutter who founded the I.J Asscher Diamond Company, now known as the Royal Asscher Diamond Company. It was the first patented diamond cut, protecting it from replication from other companies The Asscher cut was a staple of art deco jewellery, with its straight lines and brilliance making it perfect for the movement.

The full Asscher cut history and the Asscher family

The Asscher cut was invented in 1902 by Joseph Asscher who received a patent for the cut, protecting it up until WWII.

In 1903, Joseph’s son, Abraham Asscher cuts the world’s largest diamond at the time, The Excelsior, into ten stones.

Then, 1905, the Cullinan diamond was found and in 1908, Joseph Asscher cut it into 9 stones. Some of which are now part of the crown jewels

The Art Deco period saw a huge rise in popularity of the Asscher cut diamonds with its long lines and bold shape.

The Asscher cut patent expired during WWII, leaving competing diamond cutting companies to replicate the stone but with lower quality results.

Then, in the 1980’s, Queen Juliana of the Netherlands granted the Asscher Diamond Company a royal title to commend their prestigious position in the diamond industry.

And finally, in 2001, Joseph Asscher’s grandchildren reinvents the cut as The Royal Asscher Cut.

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