Types of Diamond Cuts
In the illustration below you can see how light is reflected from a diamond and how the facets and proportions of the cut affect the results.
Ideal cut diamonds | As the name implies, this is the ideal cut to allow light to reflect back up through the crown. It has the correct proportions to create awe-inspiring brilliance and sparkle.
Fine cut diamonds | These are cut well but are not quite Ideal. They’re a great money saving option with much of the light still being reflected properly. With Fine cut diamonds you reduce the cost of the diamond without having to sacrifice much in the way of cut quality.
Shallow cut diamonds | The pavilion (the bottom part of the diamond) is not long enough in this case. This cut will decrease the brilliance of the diamond, since light is getting lost through the bottom instead of being reflected back out through the top.
Deep cut diamonds | The opposite of shallow cut, here the pavilion is too long. Light will escape through the sides of the diamond, reducing the desired sparkle.