There are 4 value factors which Diamonds are based upon which are referred to as the “4 C’s”:
CUT, COLOR, CLARITY, AND CARAT (WEIGHT)
CUT is determined by its shape. The traditional “Round Cut”, also known as the “brilliant cut”, is the most well known diamond shape. It has been named the brilliant cut because of all the different shapes or cuts of diamonds, the Round Cut reflects the most white light back to your eye which is referred to as “sparkle”. Other shapes are called “Fancy Shapes” which include the “Princess Cut”, the “Marquise”, the “Oval”, and the “Pear Shape” to name a few.