Most round brilliants have table percentages range from which of the following?

• A. About 55 percent to about 65 percent.
• B. About 45 percent to about 55 percent.
• C. About 65 percent to about 75 percent.
• D. About 50 percent to about 60 percent.

Answer: (A)

Table percentage is the width of the table facet expressed as a percentage of the diamond’s overall diameter. This size shapes how light enters and returns to the eye, influencing brightness and perceived size.

For round brilliants, the table is typically in the mid-50s to around the mid-60s percent. This range provides a good balance between a generous face-up appearance and efficient light return, which is why most stones fall near 55–65 percent. The other ranges miss the common pattern: too small a table (45–55 percent) excludes many stones that look bright and well proportioned, while too large a table (65–75 percent) pushes toward less optimal light return for many cuts. A narrower 50–60 percent band would omit many stones that legitimately sit at 61–65 percent, which are still common in practice.