Here is a guide to what various sizes of Round Brilliant cut Diamonds would look like on a hand. The finger size is N 1/2 and please remember that each diamond has unique proportions and that this is only indicative.
Half Carat Diamond - 0.50ct.
One Carat Diamond - 1.00ct.
One and a half Carat Diamond - 1.5ct.
Two Carat Diamond - 2.00ct.
Two and a half Carat Diamond - 2.5ct.
Three Carat Diamond - 3.00ct.
Here is a selection of charts showing the Carat Weights of Diamond corresponding to their sizes. These are indicative only, as every diamond is cut slightly different and so will vary from these guide sizes.
Also, other gemstones, having different specific gravities, will weight more or less than diamond for the same sizes, so these charts will not be appropriate for those.
