Jewelry stores can identify diamonds, but the results are for reference only.

Generally, jewelry stores will help with the appraisal, but some jewelry stores will not give the appraisal because they are not their customers. Generally, people in jewelry stores are very enthusiastic, but generally they don't give a clear answer. After all, it is not an authoritative organization, and the results given are for reference only.

Moreover, jewelry stores can identify the authenticity, but they cannot issue certificates. Only professional appraisal institutions can issue certificates to explain some information about diamonds.

It is recommended to go to the local jewelry appraisal center for appraisal.

Extended data:

Diamonds, also called diamonds, are relatively expensive commodities in domestic and international markets. In addition to its industrial value, it is also used as an ornament, such as a corsage, a ring, a pin, an eardrop, etc. Moreover, because diamonds are natural treasures, they have high collection value.

High-quality diamonds have the following characteristics: white color, large particles, transparent crystals, high purity, regular lathe and so on. Since ancient times, diamonds have won the favor of the public with their flawless and shining natural beauty.

Nowadays, a beautiful diamond ring and a unique pendant have become a necessary token for everyone to give gifts and get married. So how do you tell the true and false diamonds and buy genuine diamonds? Today, I will teach you a few simple and practical tricks to identify true and false diamonds at a glance.

1, specific gravity test method

There is a liquid on the market to measure the specific gravity of precious stones. People can put diamonds into liquid, and the diamonds will sink. A diamond-like gem floating on a liquid is definitely not a diamond.

2, the naked eye recognition method

The luster of a diamond is a secret that can reveal its true and false identity. After polishing, the real diamond fire color is strong, and the brilliance emitted by those imitations with high refractive index appears stiff and dull.

Put the diamond in a white glass and fill it with water. If the light gets dim, it's a fake diamond. Secondly, it depends on whether the edges and corners of the diamond are very sharp. Only the edges and corners of imitations will be worn because the hardness is not high enough, and their edges and corners are blunt at best.

3. Lipophilic method

Drop a small drop of water on the diamond table. It is true if the water drops swell for a long time, but it is false if they disperse quickly. Because diamonds are lipophilic and hydrophobic.

Or put a little oil on the surface of the diamond and rub it with your thumb, which will make your thumb feel sticky and not easy to slide, while fake diamonds will make your thumb feel very slippery.

4. Breathing test

Diamonds have good heat transfer ability and hot air dissipates quickly. Put the diamond to be tested close to your mouth, breathe gently, and let the diamond to be tested be covered with a layer of light fog. At this time, watch the evaporation of diamond fog immediately. If it is a natural diamond, the fog will disperse immediately, otherwise, the fog will stay on the fake diamond for a while before dispersing.

If you want to buy diamond ornaments locally, you might as well bring a diamond imitation as a comparison of the experiment.

5. Wipe test

Rub the diamond back and forth several times on fine sandpaper. If there are scratches on the surface, it is a fake diamond; if there are no scratches, it is a real diamond.