Asscher Cut Diamond Engagement Rings

Technically speaking, nothing. And even a diamond listed as an Asscher cut will say "square emerald cut" on its certification. This is because the original Asscher cut diamond was the world's first patented diamond cut, created by Joseph Asscher in the early 20th century. But the family's patent expired during WWII, making the cutting pattern up for grabs by the general public. While the style is still called the Asscher cut, they are no longer patented or regulated, and instead are really just square emerald cuts. Hence, one in the same.

Asscher cut and emerald cut diamonds are very similar. They are both step-cut diamonds, but emerald cuts are elongated with a rectangular outline while Asscher cuts have a square outline, or 1:1 length to width ratio. Both shapes have clipped corners rather than points. Asscher cuts, with their even proportions have more of a kaleidoscope sparkle, while emerald cuts have more elongated facets and a larger table, giving them more of a flash effect. But both are sparkly and have fantastic fire that rainbow flash diamonds are known for.

While round diamonds are the most expensive diamond shape, Asscher cut diamonds are one of the most expensive fancy shapes on the market. Asschers only make up about 2% of diamonds available today. This relative rarity means that finding a really great Asscher cut within your budget can sometimes be tough to tackle. Not that it can’t be done.