Carat is a widely accepted measurement of gem weight. Diamond simulants such as those used in Desert Diamonds jewellery are heavier than natural carbon diamonds due to their chemical composition. A 1ct diamond simulant will look smaller than a 1ct carbon diamond, and a 2 carat brilliant Desert Diamonds simulant would appear to be the same size as a 1.25 carat brilliant carbon diamond. In other words, Desert Diamond simulants are 1.7 times the expected weight of an equivalently sized diamond, or one of our simulants is about 75% heavier than diamond. Diamond size does not increase proportionally with their carat weight.
To make a visual comparison between diamond simulants and carbon diamonds, it is easier to use dimensions in millimeters as a point of reference.
As an example, a 1.75ct round brilliant diamond simulant has a diameter of 6.5mm and appears the same as a 1ct carbon diamond.
This varies slightly according to the cut of the stone. Below is an overview of shapes, weight and sizes.