First: beautiful.

This is the first condition for making gems. Stones picked up casually by the roadside should not be called gems just because they are not beautiful. If the stones you see on the roadside are special in shape, they are at least worth collecting. Therefore, judging whether a stone can be called a gem, the most intuitive quality is good-looking. Gems usually have luster, which is called gem luster, which is what we often say? Good flash? This is the light from precious stones.

If an ordinary stone has luster, the value of this stone will also rise sharply. In nature, not all stones are luminous, so stones that can shine can stand out even in a pile of dim stones. This is the charm of gems, so to become a gem, you must first pass the customs.

Second: durability

If a beautiful stone breaks when it is knocked, it becomes powder in a short time, or it can't be polished for thousands or even hundreds of millions of years, then the stone is worthless. Because gems must stand the polishing of time, if they can only be used for one or two years, then buying a pile of powder at such a high price will make such gems worthless. Just like diamonds, after hundreds of millions of years of evolution, it gives people a very valuable feeling. If a gem takes only two years to form, it becomes less precious in an instant.

Third: scarcity

What are the five most important words of a gem? Things are rare? Anything that can be called a treasure must be very precious. Gems, as the name implies, are gems, so these gems must be very rare. Not everyone can have it, so the number of gems must be limited. Then owning a gem is a symbol of status, and such a gem will qualify as a gem.