There’s a famous proverb in the western: diamond is the girl’s best friend, and in China, a similar saying goes like this: diamond is eternal, one little piece can pass on forever.When choose a diamond ring , the key stone is the vital factor, so do attach great importance to the so-called “4C”: Cut, Clarity, Color and Carat.
To make it simple, the larger the diamond, the rarer it is; the purer the diamond is, the more valuable it is; the less color diamond contains, the more beauty; and the more precise the cut of the diamond gets, the more brilliant it is.
Here’s the detailed explanation:
First of all, the cut. The cutting skill of the diamond is vitally important, which directly affects the value of the jewel, only with standard cut can the stone fully demonstrate its dazzling ray, in order to achieve the perfect combination of clarity and color. The finished diamond is usually sphere or cone, the cut surface presents many shapes: square, rectangle, hexagon, circular, elliptic, etc. But hexagon is the most popular, with the numerous cut surfaces it can better reveal the gleam.
Second , the clarity. The surface or the inside of the stone tends to have flaws within, for instance, bubble, crack, etc. The less flaws it contains, the higher it ranks. In general, the purity is divided into 5 levels:
IF, flaw on the surface but not within;
WS1 and WS2, extremely tiny flaw;
Sl1 and Sl2, little spots ;
Then l1,l2,l3: certain amount.
Third, the color. The more transparent the stone looks, the more valuable it is. The colorless diamond is the most precious, for the white light can pass easily through it and be refracted into a splendid color. The pale blue, pink is absolutely rare, but the yellowish kind is quite common.
Last of all, the carat: the weight of diamond is measured with carat, 1carat equals to 0.2 gram. Diamonds of the equal weight distinguish each other by their color, clarity, cut. For example, a 2-carat diamond with poor cutting skill, bubbles or low purity is doomed to be of less value. On the contrary, with fine cut, high clarity, colorless, even a 0.5 one can be sold at an outrageous price.