How to choose diamond jewelry correctly
I. Physical characteristics of diamonds:
(1) Hardness: H= 10, a hard substance in nature, and its hardness is 150 times that of 9-grade ruby.
(2) Color: mainly colorless white and yellow, brown, pink, blue, green, red, brown, black and other colored diamonds, which are very precious and rare.
(3) Dispersion: the dispersion is high (0.044), and after processing and polishing, the fire reflects colorful light.
(4) Transparency: King Kong, transparent to opaque.
(5) Thermal conductivity: Thermal conductivity is very high in nature and can be identified by thermal conductivity meter.
Second, the international use of 4C standards for grading:
(1) carat
In the case of excellent color, transparency and cutting, the larger the single particle, the more valuable the diamond is. The weight of diamonds is calculated in carats, 1 carat = 0.2g, 1 carat = 100 minutes.
(2) Color
COLORGRADE can be roughly divided into five grades from D-Z, in which D, E and F are colorless, D is the second, and E and F are the second. After that, G, H, I and J are almost colorless. After that, the grades from K-Z are colored, K, L and M (light yellow) are yellowish, and N-Z is very light yellow.
(3) Transparency
Brightness and transparency can be divided into five grades from F-I, and F and IF are graded, almost transparent and very precious. VVS 1 and VVS2 are high-grade products. Followed by SI 1, SI2. Then I 1, I2, I3.
(4) Cutting work
The degree of completion can be divided into six grades, namely, excellent, very good, good, medium, average and poor.
Third, choose diamond jewelry:
The dazzling array of diamond ornaments is always irresistible, and many people are confused when choosing diamond ornaments. According to the insiders, the 4C standard should be recognized when buying diamonds, so as to ensure the quality of the purchased diamonds.
Carats are the weight of diamonds. 1 carat equals 0.2g, and each carat is divided into 100. For example, a 50-cent diamond weighs 0.5 carat. Cutting is the key to diamond quality, which refers to the position of diamond cutting. Excellent cutting can make the diamond fully refract all light, give off beautiful fire color and not leak light. Clarity refers to the number of inclusions in diamonds, and the less inclusions, the better; The lighter the diamond color, the stronger the flash color. The higher the color level.
Maintenance method of diamond jewelry
1, cleaning method If cleaning with special cleaner, use a soft brush. Pour the detergent into a bowl and mix it with warm water. Put the diamond ring in and brush it gently with a soft brush.
2. Cleaning platinum regularly is just like cleaning other precious jewelry. Please use a special jewelry cleaner, or soak it in mild soapy water, and then gently explore it with a soft cloth.
3. Of course, the way is to clean the jewelry store. Although cleaning the diamond ornaments at home can basically ensure the brilliance of diamonds, some maintenance needs professional jewelers to maintain them. For example, check whether the embedded foot is still firm and whether there is salad phenomenon to prevent the diamond from falling off.
4. When wearing diamond ornaments, make up first, and then wear them. Because there are chemical components in cosmetics, diamonds will be oxidized.
5. When wearing diamond ornaments, you can't spray perfume directly.