A diamond's carat weight is the specific measurement of its weight. With this being said, a diamond's carat weight may not accurately reflect a diamond's size or value.
All else being equal, diamond price increases with diamond carat weight because larger diamonds are more rare and desirable. But, two diamonds of equal carat weight can have very different values and prices depending on the three other factors of the diamond: Cut, Color, and Clarity. Always remember that a diamond's value is determined using all of the 4Cs, not just carat weight.
What does it mean when a jeweler or gemologist describes a stone as a "fifty pointer" or "one point oh eight"...?
Each carat can be subdivided into 100 "points" and this allows very precise measurements to the hundreth decimal place. So, when we say "fifty pointer" what we are referring to is .50carats, or a 1/2 carat stone. When we say "one point oh eight" we are referring to a stone that weights 1.08 carats.