Everyone in life thinks that diamonds are so small, but they are so expensive? In fact, any expensive thing in the world has its own truth! The inherent intrinsic quality of diamonds As a gem, you must have three elements: beauty, durability and scarcity. Diamond is the only gemstone that combines the highest hardness, strong refractive index and high dispersion. Any other gemstone is incomparable. Such a treasure in the treasure, rare and rare, should be the best of the best. Diamond deposits are difficult to find and costly The search for diamond deposits, unlike the legendary ones, can be found by accidentally dropping a diamond deposit. The exploration of diamond deposits often takes decades, even hundreds of years of hard work and labor, and is costly. For example, the exploration of the original Soviet Siberian diamond deposits began in 1913 after 18 years of hardship; Botswana’s “Eura†primary deposit cost $32 million and was discovered after 12 years of struggle; In a few years, the diamond primary deposits discovered in northwestern Canada have been painstakingly crafted by generations of geologists, costing at least several hundred million dollars. Less diamond deposits The number of diamond deposits in the world, if compared with the number of iron, copper and gold mines, can be said to be pitiful and few. Of the diamonds mined, on average only 20% reach the gem level, while the remaining 80% can only be used in industry. But the value of 20% gem-quality diamond is equivalent to five times that of 80% industrial diamond. The world's annual diamond production is about 100 million carats, the gemstone is about 15 million carats, and the diamond is about 4 million carats (800 kilograms). Some rough statistics have found that to get 1 carat (0.2 g) of polished diamonds, about 250 tons of ore need to be excavated. Diamond processing procedures are complex and the amount of work is large After the mined ore is carefully crushed and sorted, it is not like other metal deposits, it can be put into large-scale smelting. Instead, each diamond blank should be carefully and carefully analyzed to determine the undercut. Program to ensure its weight, clarity and style. This often requires people who have a good understanding of the physical and optical properties of the diamond itself and who have considerable experience. The general steps are: design marking; boring; sawing; car drilling; grinding; cleaning grading. And each of these steps includes a lot of small programs. Every small step requires exquisite craftsmanship and rich experience. Take the world's most Cullinan diamonds, the original stone weighs 3,106 carats. Three experienced and skilled craftsmen work 14 hours a day, which takes 8 months to divide it into 4 large diamonds. 101 small diamonds. The processing of some world-famous diamonds often takes only a few months or even 1-2 years to design. In the hands of consumers, a diamond has a lot of experience According to preliminary statistics, a diamond, from its mining, sorting, processing, grading, sales, to the final sale to the purchaser, involves more than 2 million people.
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