Sapphire symbolizes loyalty, steadfastness, love and honesty. The English name is Sapphire, which is a high-end gemstone and is one of the top five gemstones. Sapphire and ruby ​​are known as "sister gems" and have a hardness of 9, which is second only to diamonds and is very hard. Orientals believe that wearing sapphire can protect people from sin and bring good luck. The Japanese chose it as a precious souvenir for the 23rd anniversary of marriage (sapphire) and the 26th anniversary (star sapphire).
There are not many world sapphire producing areas, mainly Myanmar, Sri Lanka, Thailand, Australia, China, etc., but in terms of gem quality, Myanmar and Sri Lanka have the best quality. Depending on the geological origin, it can be divided into two categories: one is sapphire produced in Myanmar, Sri Lanka and Kashmir, India. The other category is sapphire from Australia, Thailand and China. The sapphire of Myanmar and other real estates, due to the coloration of titanium, is bright blue, containing silky rutile and fingerprint-like liquid inclusions. The silky rutile inclusions can produce six or twelve starlights and are of high quality gemstones. The sapphire produced in Australia, Thailand and China contains more iron and is colored by iron. Therefore, the color of the gemstone is very dark, and the reflection effect of the faceted gemstone is not very good. Generally, it needs to be heated and processed to be used. The characteristics of sapphire from different regions are briefly described as follows:
1. Kashmir, India:
The best color sapphire is the sapphire of Kashmir. The indigo of this sapphire is slightly purple. The jewellery world calls it cornflower blue. The color is bright and bright, beautiful and beautiful. It looks like bright velvet blue. It is a high quality sapphire variety. The mining area is located at the northwestern end of the Himalayas. At an altitude of more than 5,000 meters, the fog is shrouded throughout the year. The land is snowy and the mining conditions are extremely poor. It can only be found in mine for three months a year. It is said that it has been extensively mined since 1861 and has been stopped. The sapphire that is now circulating in the city is very precious. So the place is actually a sapphire that reflects the highest quality.
2. Myanmar Mogo:
Burmese sapphire is famous in the world, mainly produced in the Mogok area. Burmese sapphire is also known as oriental sapphire. It represents a very high quality "dark blue" purple jewel. Burmese sapphire has high transparency, small cracks, and is close to Kashmir's sapphire. It is also a good product, but the output is not much. Some Burmese sapphire colors are blue, yellow, gray and white, and are opaque. The sapphire contains a silky inclusion, which can be rendered as a six-shot or twelve-shot star after being honed into a curved gemstone. The sapphire here is mostly produced in sand mines, and the crystals are round and round.
3. Sri Lanka:
Sri Lankan sapphire and ruby ​​belong to the same mining area, except for the different colors, the other characteristics are basically the same. The color is lighter, the blue is slightly purple, the color may not be uniform enough, but the transparency and dispersion are high. The silky inclusions contained are thin and long, similar to the characteristics of Burmese sapphire, and can be starburst. Sri Lanka's sapphire mining has a long history and is said to have been an important sapphire origin in the world for more than 2,000 years. The world's largest sapphire and the world's third-largest star sapphire are produced in the Sri Lankan sand mine, where sapphire is of high quality and high yield and is second to none in the world.
4. Thailand:
Thai sapphire is black blue, light gray blue. There are no filamentous inclusions in the crystal, but the fingerprint-like liquid inclusions develop. The most striking feature is the presence of a crack in the shape of a lotus leaf around the black solid inclusion.
5. China:
The Shandong Changle sapphire deposit has a large distribution area and a large reserve, which is rare in the world. There are very few inclusions in gem-quality sapphires. In addition to the black solid inclusions, fingerprint-like inclusions are still visible. Shandong sapphire is mostly indigo, blue, green and yellow near carbon black. Mainly indigo, blue sapphire is dark and dark due to high iron content. It needs to be color-changed to improve transparency. The sapphire after color change is less bright and beautiful. There are also sapphire production in Heilongjiang Province, Jiangsu Province, Fujian Province and Hainan Island in China. The output is not large and the quality is not high. In the country, you can study related courses by participating in short-term jewelry appraisal classes, such as the Guangdong Jewelry and Precious Metals Testing Center.
6. Australia:
Australia is a producer of abundant sapphire, mainly produced in eastern Queensland and New South Wales. The sapphire here often contains dust-like inclusions, and due to the high iron content, the color of the stone is dark and mostly close to charcoal. Dark blue, yellow, green or brown. When the color is too deep or even close to black, the value will drop. Founded in 1935 in Queensland, Australia, the original stone weighs 2,303 carats. The artist, Norman Mannes, spent 1800 hours carving it into the portrait of the famous President Lincoln in American history.
7. Cambodia Battambang:
Cambodian Battambang is also an important sapphire origin in the world. The sapphire is from basalt, the color is beautiful, and the quality is excellent, but the particles are relatively small.
The above commercial grades reflect the effect of blue in different shades on value. It is generally believed that Kashmir Blue is the most precious and precious color. Kashmir-grade sapphire is also the most expensive sapphire in the world; followed by Burmese sapphire, while Thailand, Australia and Chinese sapphire vary widely. As far as color is concerned, the sapphire is purple-blue, medium-dark, and its blue color can be flashed under normal sunlight, which is a high-quality variety. Conversely, if the blue is gray or black, it needs strong light. In order to be blue, the quality is poor. In addition, if the blue is too light, such as water blue, the price will be low.
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