the-tiffany-guide-to-diamonds-cut

If a diamond is cut poorly, it will appear dull even if it has a high color and clarity grade. If a diamond is cut well, it will reflect and refract light for maximum brightness and sparkle. At Tiffany, we are committed to crafting the most expertly proportioned diamonds. In our workshops, 1,500 of the world’s most talented artisans cut diamonds to the highest standards. This precision is what sets Tiffany diamonds apart.

While most jewelers accept “excellent,” “very good,” “good,” “fair” and “poor” cuts, Tiffany refuses to compromise by cutting our diamonds to meet exceptional standards. Non-Tiffany diamonds are sometimes cut too deep or too shallow, allowing light to escape through the sides and bottom. They can also have misaligned facets, which interrupts the movement of light.

The gemological standards in this section refer only to individually registered engagement diamonds set in certain ring styles.

The brilliant cut is the most popular facet arrangement. It is made of triangular and kite-shaped facets, all arranged to optimize brilliance, or light return. The round brilliant diamond, which has 57 to 58 facets, is the most brilliant of the diamond cuts. Cushion, oval, marquise, pear and heart-shaped diamonds are also cut using the brilliant faceting style and are similar to the round brilliant in degree of sparkle.

Mixed cuts have a combination of brilliant and step-cut facets. The Tiffany True® diamond is a mixed cut with a crown made entirely of step cuts and a brilliant-cut pavilion.