What does “Ideal Cut” mean?

What could be superior to a perfect diamond? It’s not a ruse, either. Only a small percentage of loose diamonds are flawless and dazzling enough to merit high diamond cut grades (and the associated price tags). The finest subset of diamonds that are already regarded as flawless are ideal cut diamonds, which are at the top of the diamond hierarchy. They make up the tiniest fraction of flawless diamonds and are the rarest of all jewels.

Deal cut is a level of diamond cutting. Diamonds with an ideal cut have the best possible symmetry, angles, light reflection, proportions, and sparkle. Due to their rarity, perfect cut diamonds are only made in the princess cut and round cut varieties of brilliant cuts. Only those fashions satisfy the “ideal” requirements. (An emerald cut or pear-shaped diamond might be great for you; however, be aware of anyone attempting to pass off such a stone as the ideal cut.)

What is the origin of the phrase “ideal cut diamond”?

In 1919, master jewel cutter Marcel Tolkowsky developed the perfect cut. He researched diamond grinding for his Ph.D. engineering thesis in London. Tolkowsky discovered that a diamond would lose sparkle if it was cut too deeply or at an unfavorable angle. He came to the conclusion that a diamond needed to be cut into 58 precisely constructed facets in order to have the ideal shine.

The appellation by which jewelry experts today are familiar with the ideal cut diamond was given by Tolkowsky. The Tolkowsky Brilliant, American Standard, and Tolkowsky cut diamond are other names for it. He determined that the rarest jewels in the world would be perfect cut diamonds. Not “ideal” diamonds nevertheless make beautiful jewelry; they’re just flawed.

The American Gemological Society now recognizes any diamond falling within a specific range of proportions and finish quality as being a “Ideal Cut” (also known as a “AGS 0” or “AGS triple zero”).