Introduction to Asscher-Cut Diamonds

Aug 15, 2026

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The Asscher cut-also known as the square emerald cut or the Royal Square cut-is a dazzling gem in the jewelry world, prized for its distinctive square step-cut facets and captivating, symmetrical pattern. Viewed from above, the diamond resembles a labyrinth of light and shadow, drawing the eye toward the center and creating a mesmerizing, scintillating effect.

 

Asscher Cut Proportions
The Asscher cut demands exceptional squareness; the ideal length-to-width ratio falls between 1.00 and 1.05, with a ratio close to 1:1 being highly recommended. If the ratio is too high, the diamond loses the signature "windmill" pattern characteristic of the square cut. For a one-carat Asscher diamond, the recommended dimensions are 5.5mm, matching the size of a Princess cut diamond.

 

Asscher Cut Color and Clarity
For larger Asscher diamonds, a color grade of H or higher is recommended, while smaller stones should be no lower than I. Because flaws and inclusions are more visible in this cut, smaller diamonds should have a clarity grade of at least SI1 to ensure a clean, brilliant appearance. Larger diamonds (over one carat) require higher clarity, with VS or better recommended.

 

Asscher Cut Price
Given identical specifications, Asscher diamonds are approximately 30% less expensive than round brilliant diamonds. This unique cut not only highlights a woman's individuality and keen fashion sense but also symbolizes a meticulous and determined personality. With clean, crisp lines similar in character to the Princess cut, the Asscher diamond reflects the wearer's distinctive taste.

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