More than 1 carat, the price of drilling has soared, and the demand for large diamonds has risen.

This is the hardest substance in the world composed of the most common elements in the world. It can refract ordinary white light projected onto it into colorful colors, giving people unspeakable satisfaction and joy, and silently interpreting the pursuit of the highest realm of human nature. Most people in ancient Greece felt that diamonds were fallen stars, and a few people felt that they were tears of the gods. In 2012, the world's first "full diamond ring" has been exploited by humans for thousands of years, but gem-quality diamonds larger than 20 carats have been rare since ancient times. At present, there are more than 1900 large diamonds larger than 100 carats found in the world, of which 21 are larger than 500 carats and only 2 are larger than 1000 carats. One of the world's largest diamonds to date was discovered on January 27, 1905 in Burymer, Zaire, South Africa. It was named "Cullinan" and weighed 3,106 carats. In 1908, this giant diamond was smashed into several large pieces and then processed into 9 large diamonds and 98 small diamonds, leaving a piece of original stone (weight 9.5 carats) unprocessed. One of the most recent recent news is that a Swiss jewelry company created the world's first "complete diamond ring", including the ring part made entirely of a large diamond, weighing 150 carats, taking a whole year, priced at 7000 Ten thousand U.S. dollars. >>> Cutting process Until today, there are not many countries and regions capable of processing diamonds, but Belgium, Russia and the United States are good at cutting large diamonds. ● Belgian processed diamonds include round diamonds and a variety of fancy cut diamonds. Belgian cuts are indeed the most standard. The round diamond is usually 57 faces (1 table and 56 facets: 8 table corners or kite faces, 8 stars and 16 upper waists. 8 pavilions and 16 lower waists) ), the ratio and the degree of modification are very good. Some of the bottom tips are slightly polished to a frosted white spot to prevent rubbing and rubbing damage when the diamonds are mixed. ●Russia uses self-produced automated machines, and the ratio of processed diamonds is in a good range. Features are round diamonds, with 57 faces, flat bottoms, fine waist, translucent frosted, but often with parallel thin lines on the surface. ●The diamonds processed in the United States include round diamonds and various fancy cut diamonds, mainly processing large diamonds of more than 1 carat. The American cut-off round diamond has 58 faces, the sharp bottom is polished and polished into a transparent octagonal shape, and the waist edge is ground into a transparent facet, but its symmetry is not as good as that of Russian workers and Belgian workers. >>> Consumption and investment can be designed with more diamonds ● Ren Jin, associate professor of Jewelry College, China University of Geosciences, jewelry designer Reporter: How many carats can be called big diamonds? Ren Jin: Generally more than one carat is called a large diamond, three carats are called extra large diamonds, and five carats or more are called super large diamonds. Reporter: In recent years, have people become more and more loved? Ren Jin: Domestic demand has a relatively strong rise. Nearly one-third of the world's diamonds are in China, and of course, more than 5-6 carats are still concentrated in the United States. Reporter: What is the difference between big diamond and ordinary drill design? Ren Jin: There are only a few hundred capsules in the world above 5 carats. Because of the small number and special shape, the owners usually look for designers to customize. Ordinary diamonds are mainly frontal decoration, because of the large size of the large diamonds, the bottom of the side should be decorated with patterns. The larger the diamond cuts, the more than 100 faces, and there are dozens of cutting methods, which are very rich. Reporter: Which of the biggest diamonds you have ever designed is a few carats? Ren Jin: The biggest design ever was a pair of 19 carat diamonds. Six diamonds ranging from 6 carats to 13 carats have been designed and eventually made into necklaces, rings and earrings sets with 456 white diamonds. The price of diamonds has risen more than 1 carat. ● Hao Yi, president of the diamond shopping mall per carat. Reporter: From the sales per carat, what changes have people's demand for big diamonds? Hao Yi: In the past, people were more inclined to buy diamond rings of 30-50 points. Now they are 80 points, 1 carat to 2 carats, and they are getting bigger and bigger. The maximum diamond ever sold per carat is 8 carats. In 2010, the sales per carat of diamonds was 100 million, and by 2011 it reached 300 million. The price of diamonds above 1 carat has risen a lot. Reporter: What is the design of Dakla diamonds? Hao Yi: Big diamonds are used more for diamond rings, but also for necklaces. Earrings also tend to use two carats. Reporter: How do you view the market space for the future of Big Diamond? Hao Yi: China's demand and growth are explosive. Consumers used to recognize small diamonds, mainly wedding rings. It is widely believed that diamonds are luxury goods and the value of large diamonds is too high. Now more collectors, entrepreneurs, families and individuals with economic strength gradually buy big diamonds on the basis of wedding rings, and start to use big diamonds as investment projects. Diamonds are called “movable property”, and the room for appreciation of large diamonds is relatively large. From 2003 to the present, the price of diamonds above 1 carat has doubled, and the higher the carat, the greater the increase. In the future, the space for colored diamonds is also relatively large, and the price of 5-6 carats of pink diamonds has reached tens of millions. Big diamonds have more value-keeping space ● I DO brand leader Reporter: What is the reason for the rapid appreciation of Dakara diamond in recent years? I DO: The price of diamonds has accelerated this year, which is related to the weakening of mining and mining capacity. At present, large diamond mines all over the world are mainly concentrated in Africa, Australia, Russia and other places. Many mines are facing the declining mining capacity and the end of production life. Even if a new mining area is discovered, it will take at least 10 years to become a prolific mine. If the world cannot find new and large diamond mining areas in 10 years, according to the current progress, 40 years later, the global proven diamond reserves will be Exhausted, so the rare big carat diamonds are increasingly favored by investors. Reporter: How do you view the appreciation space of big diamonds? I DO: As a general rule, an average of hundreds of tons of ore can be mined to produce a better grade of diamonds of more than 1 carat, and only these diamonds have a better room for appreciation. From the historical price point of view, diamonds as investment products, the average annual appreciation rate of about 8%, individual quality, cut a good carat diamond will have a 20% increase. The investment in high quality carat diamonds is a major trend and direction in the future.

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