Round Brilliant Diamond Depth

February 18 2013 one of the most important things to consider when looking for the best diamonds to buy is the diamond depth percentages.

Round brilliant diamond depth.

The diamond s depth percentage is the ratio of the diamond s diameter compared to the diamond s total depth the measurement of the table to. In a grading report there are normally two measurements of depth. Discover the ideal depth and table percentages for round diamond cuts and the ranges you should stay within when buying a round brilliant diamond. It is widely misconceived that a larger table percentage would make a round diamond more brilliant than one with a smaller table.

On a modern round brilliant cut diamond the table is one of 58 facets on the surface of the diamond. See the chart below for detailed information. When you set out to buy a diamond be it for an engagement ring an anniversary necklace or a pair of earrings to celebrate a graduation there s quite a bit more to consider than just how shiny it. Fluorescence is often a negative factor but it can be helpful in some cases.

Total depth depth average girdle diameter x 100. For a round diamond an ideal depth percentage is between 59 and 62 6 percent this. As the top facet the table lets light into the diamond and refracts it towards the facets on the top and sides creating its unique sparkly appearance. Diamond depth percentages in round brilliant cut diamonds.

The total depth percentage is a calculated value obtained by the following formula.