The cut of a diamond is ultimately the factor in how a diamond interacts with natural light and therefore affects how sparkly it is, in fact Tiffany & Co. believes that the cut of the ring is the most important of the four C’s.

The cut of a diamond affects how sparkly the stone is when hit with light, meaning that two stones with the same colour and clarity ratings can appear very different if one has a greater quality of cut than the other.

The better the cut of the diamond, the more expensive the stone will be.