A diamonds weight is measured in carats with one carat being the equivalent to 100 points. Diamonds that are smaller than one carat can be referred to in different ways, all with the same meaning. For example, a 0.25ct diamond can also be referred to as a 1⁄4 (quarter) carat or a “25 pointer” . Diamonds that weigh very small amounts such as 0.01ct and 0.05ct are commonly referred to as “one pointer” and “5 pointers”.
When diamonds are mined, large gems are discovered much less frequently than small ones, which makes the larger diamonds far more valuable. In general, diamond prices rise exponentially with carat weight. So a 2-carat diamond will cost far more than twice that of a 1-carat diamond of the same quality.
Carat Weight Scale
While the diamonds shown are not actual size,
they do represent the increase in proportion between each size.