It is easier to buy a diamond than all other precious stones, because it already has a relatively complete quality quantification system, which is what we often call the 4C standard, that is, weight, clarity, color and cut.

With these four classification standards, even if it is a remote online shopping, diamonds that match the real thing can always be selected.

1. weight (Carata)

In fact, the weight of diamond 4C also refers to its size. Many times, people call it the Ct of a diamond.

1 carat = 0.2g = 100 cent. Diamonds below 1 carat can also be measured in minutes. For example, a 0.5 carat diamond is worth 50 cents. In addition, under the condition that the other three C conditions remain unchanged, the heavier the diamond is, the more valuable it is, because the rarer it is-1carat or more, its price will increase exponentially!

Generally, the value of diamonds is divided into three grades: 30 cents, 70 cents, 1 carat.

Step 2 be clear

The definition grades can be divided into FL, IF, VVS 1, VVS2, VVS 1, VS2, SI 1, SI2, SI3, I 1, I2 and I3 from high to low.

Observe the cleanliness of the diamond carefully under a ten-fold microscope. The fewer defects, the better the quality, the more favorable the refraction of light, and the higher the price. Overall, it's great to be above the VS level. If there are budget constraints, you can be a little more tolerant on this C, otherwise you will be prepared to pay a high price.

Step 3 color

We usually talk about the color of Cape series diamonds, that is, colorless-light yellow series, ranging from colorless D grade to yellow Z grade. Colorless is the best, the darker the color, the worse the quality and the lower the price.

In the color classification of colorless diamonds, if the top color is D, diamonds will gradually turn yellow from K, which is basically meaningless for collection. So when you choose a drill, try to choose a color above H. G color, which in turn is a cost-effective choice.

Step 4 cut

This standard involves the cutting angle and cutting ratio of a diamond, which is divided into three categories: cutting ratio, polishing and modification. Each item has five grades, which are divided into excellent (ex), very good (VG), good, average and poor from high to low. A good trade union can make diamonds shine, which is what we call diamond fire. If the diamond is cut too flat or too thick, the light will not be reflected by the ideal, and the light of the diamond will be inferior.

The above content is transferred from an official WeChat account called "Wanpu", which has high reference value. I hope it can be adopted. I have seen physical stores here in Shanghai. I don't know about other places. You can search if you are interested. Woo-hoo-hoo! ! !