When purchasing a diamond, you will hear mention of the “4 Cs.”The four characteristics used to determine the value of a diamond.
The Four C’s of diamonds correspond to the carat, cut, clarity and color.
Most diamonds are cut with 58 facets, except the Princess & Radiant diamond cutter must examine a rough stone and decide which shape the finished diamond will be, based on the shape of the rough stone, location of its imperfections, its size and how much weight will be lost in the cutting process.
Carat is a measure of weight, not size. A carat equals 100 points or 1/5 of a gram.
Diamonds of higher carat weight are generally more valuable because they are found less frequently in nature.
Colorless: rated as D, E and F. These are the most desirable “colors” for a diamond.
Near colorless: rated G, H, I and J. These stones “face-up” colorless, with only slight traces of color visible to a trained eye.
Faint Yellow: rated K, L and M. In smaller sizes these stones “face-up” near colorless. Larger stones will appear tinted.
Yellow Tint: rated M through Z, these stones w ill show a yellowish tint to an untrained eye.
Flawless: Free of all inclusions & blemishes under 10x magnification Internally
Flawless: same as above, with minor surface blemishes
VVS1 & VVS2: Minute inclusions difficult to locate under 10x magnification by trained observer.
VS1 &VS2: Contain minor inclusions between those difficult and those somewhat easy to locate under 10x
SI1 & SI2: Contains noticeable inclusions easily visible under 10x
I-1, I-2, and I-3: Contain inclusions from difficult to easily visible to the unaided eye.