A very good cut diamond is one that has been cut in perfect proportion on all sides. These diamonds don't have to be shiny. Very good-cut Diamonds are similar to excellent-cut diamonds. When light passes through these diamonds, the light spreads everywhere because a large part of the light gets reflected through the diamond's table. 25% of the quality of a diamond depends on the cut, so

The cushion diamond has rounded sides along with a square cut. For the first century of its existence, the most common diamond shape was this timeless cut, which has been around for 180–190 years. Cushion diamonds are less glossy than round diamonds but are nonetheless fairly bright. While some individuals favour round diamonds for their great overall sparkle, others favour the high brilliance o