1, identified by color.
Natural ruby, even pigeon blood red, is not a very pure color, and the formation conditions of gemstones lead to local or a little uneven color.
Usually, the genuine natural ruby color is softer and the eye observation is very comfortable; If it is a fake, it will look dazzling.
2, from the gloss to identify
There is a very obvious difference in luster between real natural rubies and fakes.
Authentic luster is mild and soft, and it will present several different luster; A fake, that is, an artificial ruby, gives off a glass luster. Under strong light, its glass luster is particularly obvious, which is also some unique characteristics of artificial ruby.
3, from the cutting process to identify.
The quality of jewelry is one of the most important factors.
Authentic high-quality ruby, the process is very strict, and every link needs to be strictly controlled. Natural rubies are relatively rare, and artificial destruction is not allowed, so the cutting of genuine natural rubies is perfect and exquisite, so that the luster of rubies is perfectly refracted.
On the contrary, in artificial gem, it is more casual and the cutting is rough.
Extended data
Ruby is one of the precious varieties in jewelry.
Ruby is bright in color, and under the illumination of light source, it can reflect beautiful and moving six-ray starlight, commonly known as six lines, which is caused by the special crystal structure of ruby and its unique optical phenomenon.
Ruby is transparent, translucent and opaque, and its colors are water red, pink, pigeon blood red and rose red. Because big gems are very rare, rubies with larger particles are generally fake.
There are two kinds of fake rubies:
First of all, the low-grade ruby is passed off as a ruby, and all the fake rubies have no unique color, shape and luster of rubies.
The second is artificial ruby. Artificial ruby is very similar to natural ruby in terms of specific gravity, hardness and color.
Intuitively, artificial rubies have uniform texture, no natural impurities, even and positive color, often large particles and lack naturalness.
References:
Baidu Encyclopedia entry-Ruby (red and pink corundum)