1, ultraviolet light: diamonds will show blue fluorescence under ultraviolet light. If you see a bright blue light, it is a real drill, otherwise it is a fake drill;
2, blowing: real drill heat dissipation fast. If you breathe on the diamond, the fog quickly dissipates is a real drill, and the fog stays for a long time is a fake drill;
3, friction: diamond hardness is very high, it is difficult to leave scratches. Rub the surface of the diamond with sandpaper, there is a scratch is a fake diamond;
4, oil pen: diamond has oilophilic. Use an oil-based pen to write on the surface of the diamond, the writing on the real diamond is clear, and the fake diamond is intermittent.
Buy wedding ring how to distinguish the true diamond fake
1. Ultraviolet light
Diamonds fluoresce blue when exposed to ultraviolet or strong light. If you see a bright blue light, it is a real drill, otherwise it is a fake drill. However, there are also diamonds that do not fluoresce under ultraviolet light and need to be further judged.
2. Blow
The real drill dissipates heat quickly and does not fog easily. Breathe on the diamond, the fog quickly dissipates is a real drill, the fog stays for a long time is a fake drill. If you repeatedly breathe on the diamond, the fog on the surface of the fake diamond will become more and more obvious, and the real diamond will always be clear.
3. Friction
Diamonds are very hard and it is difficult to leave scratches on the surface. You can rub the surface of the diamond with sandpaper to see if there is a scratch mark, a scratch is a fake diamond.
4. Oil pen
Diamonds are lipophilic. It is easy to write on the diamond with an oil-based pen, and the handwriting is clear; But the oil stains on the fake diamonds will appear as intermittent droplets.
5. Put in water
The density of diamonds is relatively high, and the weight is relatively high, and the density of fake diamonds is small. Diamonds are placed in a transparent container filled with water, and those that sink to the bottom are real diamonds, while those that float are fake diamonds.
6. Put it on a printed newspaper
A real drill's light refracts in different directions. Place the flat side of the diamond on a page with a lot of text, so that there is plenty of light around. If you can see the text through the diamond, even if the handwriting is blurred, it is a fake diamond, and the real diamond can not see any words.
7. Check the base
Real diamonds are unlikely to be mounted on cheap sets. There is generally metal information inside the base, such as 14K, 18K, 750, 950, PT, Plat, etc., which are better materials. If it has a C.Z. mark on it, it is not a real diamond, but a synthetic stone.
8. Heat
The diamond heating 30s, quickly thrown into cold water, some fragile materials will crack from the inside, such as glass, quartz stone, the real drill will not appear any damage.