Cut Cut not only refers to a diamond’s shape, but more importantly its proportions. A well-proportioned diamond ring brings outs the maximum beauty. Diamonds cut too deep or shallow lose light through the side or bottom, resulting in loss of brilliance.
Like people, diamonds have natural birthmarks that vary in size, shape, quantity and color. Clarity is the degree to which a diamond is free from inclusion and blemishes, which can hinder the light as it passes through your diamond. Clarity, along with color, is what gives a diamond its sparkle.
The best and most beautiful color for a diamond is no color at all. The Gemological Institute of America has created a scale to measure diamond color, ranging from D (colorless) to Z (yellow). Fancy colored diamonds are graded Z and higher.
Carat Diamonds are weighed in units called carats. As the carat weight of a diamond increases, so does its price and rarity. A carat is measured in increments called points. One carat is equal to 100 points. Carat weight is the easiest of the 4 C’s to determine, because it is measured on a diamond scale.