It is a measure of the value and quality of a diamond. It is called "4C" because the English of these four factors all starts with "C", so if you want to judge the value and quality of a diamond, you only need to look at it comprehensively.
Diamond color * * * is divided into 23 grades, from high to low, from D to Z. The higher the grade, the closer the diamond color is to colorless. Generally, if you buy a diamond ring, it is recommended to choose a grade J or above, so that the diamond will not feel yellow and the diamond ring will be cleaner.
Diamond maintenance method
1, diamonds should not collide with hard objects.
Diamonds are the hardest gems, but they are not indestructible. It is fragile to some extent, and may be damaged by heavy blows, and it may loosen from the aging ring retainer. It is also best not to put it with other diamond ornaments. When doing housework or other physical labor, it is best to take off the diamond jewelry and put it away, so as to avoid accidentally touching hard objects and causing damage to the diamond.
2, diamond jewelry is best placed separately.
When collecting and keeping diamond ornaments, they should be placed separately to avoid being mixed with other jewelry, otherwise hard diamonds will scratch other jewelry. In particular, it should be separated from gold jewelry. Gold is soft, and it is easy to be damaged when it is put together with diamond ornaments, and it is also easy for gold to make platinum for inlay yellow, which affects the color.
Step 3 stay away from oily substances
Try to avoid direct contact with the diamond surface with your fingers. Diamonds are lipophilic, and the oil on the epidermis will adhere to the surface of diamonds, which will affect the luster and brightness of diamonds. In the long run, diamonds will look gray. After touching the diamond, it is also best to wipe it with a soft cloth in time.
Oil stains, stains, etc. It will also mask its luster. Therefore, when washing dishes and cooking, you should take off your jewelry to avoid stains and lampblack. If you are contaminated with oil stains, you should use a professional jewelry cleaning solution for cleaning.
4. Check the diamond situation regularly.
For finished diamond ornaments, it is best to check the setting of diamonds regularly, such as touching diamonds with tweezers to see if they shake. Or send it directly to the jewelry store for inspection.
5. Wash diamonds regularly
It is best to wash diamonds regularly during wearing, which can be washed directly with water; You can also use a neutral cleaner such as detergent, gently brush the diamond surface with a soft toothbrush, and dry the water with a dry flannel. Or buy a special jewelry cleaning solution in a jewelry store and follow the instructions to clean the diamonds.