Chat with our AI personalities
The millimeter size of a diamond of this weight varies, depending on the cut. If the gem is round cut, its measurement at the girdle will be between 16.3 mm (15 carats) and 17.6 mm (20 carats).
Depending on the cut, a five carat diamond always weighs five carats. If the cut is round brilliant, the mm measurement at the girdle is about 11.
An eighth of a diamond carat, if it is a round cut, measures about 3.2mm at the girdle.
Depending on the cut of the stone -- a round brilliant cut measures 8.2 mm at the girdle -- you can find out about how large a stone appears to be by exploring the Web site, below. (Precisely, a two carat diamond weighs two carats: that's how big it is.)
If the diamond is an ideal emerald cut with these measurements, the diamond may weigh about one quarter of a carat. Otherwise, you have stated the diamond's 'big' size in measurements.