Sapphire belongs to the category of jewelry. At present, collecting jewelry is very common. But in the process of buying and selling collections, the most important thing is to learn some appraisal knowledge.
The most common sapphire on the market is glass. In fact, it is relatively easy to identify glass. Glass is shaped at high temperature, naturally shrinks after cooling, and the plane is concave inward. This kind of depression is not easy to find with the naked eye, so a magnifying glass must be used. When using a magnifying glass, you can't focus in a straight line, but focus obliquely, so it is easy to find the concave surface. The concave surface is usually glass. The polishing of precious stones usually achieves a very flat effect. Another identification method is that there are many kinds of inclusions in glass, the most common one is bubbles, while gems have no bubbles. Bubbles in glass can be found with a magnifying glass of 10 times.
There is also a sapphire that acts as a synthetic sapphire. The identification method is to first look at the texture and whether the texture structure is naturally crystallized. Rock crystal is often messy, so it is generally genuine. However, the crystallization of synthetic sapphire is often very orderly. Of course, many synthetic sapphires are clean and flawless, usually fakes. Because there are always some impurities in natural gems, there are almost no clean ones. This synthetic sapphire is often dazzling in color and superficial in luster, without the deep feeling of natural color. Natural gemstones are high in color purity, not dazzling, and their brilliance is naturally emitted from the inside out.
Of course, these are just some basic identification methods. If you want to learn depth discrimination, you can only master this skill by watching more and practicing more.
The origin of sapphire and others
Sapphire is produced in Myanmar, Sri Lanka, Australia, Shandong and Hainan Island in China. The famous big sapphire is the starlight sapphire of "Asia Star" in Smith Museum, USA, weighing 330 carats. The new york Museum in the United States has an "Indian Star" starlight sapphire, weighing 563 carats. 1935 The original sapphire stone found in Queensland, Australia weighed 2303 carats. 1948, a black starlight sapphire weighing 733 carats was found in Queensland, Australia, which is by far the largest granular starlight sapphire in the world.
Sapphire is the birthstone in September, and it is also the 45th wedding anniversary stone. Sapphire is liked by people because of its deep and dignified color. She is usually regarded as a symbol of loyalty, faithfulness and wisdom, and also implies love. Persians believe that the earth is supported by a huge sapphire, and the reflection of sapphire reflects sky blue. It is said that sapphire can remove liquid or foreign matter from eyes. Sapphire is the guiding stone in the eyes of orientals. People who wear sapphire are not easy to get hurt and can have good luck.