Carat weight can also be symbolic. The visual difference between a 0.98 carat diamond and a 1.01 carat diamond is negligible, but many people will not hesitate to buy a larger diamond at a higher price. Some carat weights are considered "magic sizes", such as 0.5 carat, 0.75 carat and 1.0 carat. Their weights are not very different, but if both are D color round brilliant diamonds and have the same clarity And cut, then the weight will play a decisive role. They look the same, but if the consumer’s expectations are set at one carat, it can make a huge difference. In fact, the second diamond, which is slightly heavier than the "magic" 1 carat, is only 6 points heavier, but the price may be 20% higher.