Some Standards about Selecting a Best and Better Diamond
Because the diamond ring is the first choice of the bride and bridegroom, I learn some knowledge about selecting a best and better diamond. No matter what you are a single person or a couple, all of you can read it, which will give you a favor in purchasing the diamond ring in the future. Now, I would like to share with you all guys.
The quality of diamond is judged according to the diamond standard “Four C“.
Diamond Standard 4C: Carat weight, Color, Clarity, Cut
- Carat weight
The heavier the diamond is, the higher of its value is. Usually, the diamond carat weight , from only 30 points to 1 carat, is the most popular one.
GIA ( Gemmological Institute of America) divides the color of diamonds from colorless to light yellow or light brown into 23 consecutive color levels. The color from high (colorless) to low score corresponds to 23 English letters: D, E, F , G, H, I, J, K, L, M, N, O, Q, R, S, T, U, V, W, X, Y, Z.
D color is the best color. Usually, you can buy diamonds with H color and above. Such diamonds seems not to be yellow, and the diamonds look more beautiful and transparent.
The GIA clarity grading system has 11 clarity levels, followed by FL, IF, VVS1, VVS2, VS1, VS2, SI1, SI2, I1, I2, and I3.
Regarding to the diamond clarity, SI1 or above is much more better. In terms of practicality, SI1 is the top choice, because the price/performance ratio is also very high. Meanwhile, the clarity of diamonds is assessed by a 10x magnifying glass, the flaws of diamonds, with a clarity of SI1 or above, cannot be seen by the naked eye.
The cut level is divided into five levels by GIA, including EX (Excellent), VG (Very good), G (goog), F (faint), P (poor).
The cut level also includes the polishing level with the same five levels: EX (Excellent), VG (Very good), G (goog), F (faint), P (poor)
The cut level also includes five levels of symmetry: EX (Excellent), VG (Very good), G (Goog), F (faint), P (poor)
In terms of cutting selection, the diamond with EX cut, EX polishing, EX symmetry is the best one that we can choose.