Diamond cut

The cut of a diamond is one of the fundamental attributes (one of the 4 C's) to knowing how to judge a diamond. Although it is often confused with the Shape of the diamond (Round cut, Princess cut, Emerald cut), it actually refers to how well the stone is polished from rough. A Premium cut gives a diamond a higher level of sparkle intensity. The angles and finish of the diamond determine its ability to reflect light. A better polish means a better reflective quality and hence a better sparkle.

The images below demonstrate the difference between well-cut diamonds and less well cut diamonds. In well-cut diamonds, light enters through the table (flat top) and travels through the stone from one side to the other before reflecting back out of the diamond. This reflected light creates the sparkle or bright fire effect that makes diamonds so brilliant to look at. In a poorly cut diamond, the light that enters through the table and then escapes out from the bottom or sides of the diamond rather than being reflected back. The less light that gets reflected back the less sparkly or brilliant the diamond appears.

Seventy Seven Diamonds Classification

Seventy Seven Diamonds uses the classification of Premium, Good and Fair grades to help our customers differentiate between better and worse quality diamonds (worse quality stones are less sparkly but can offer better value for money).

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