The above five leading diamondproducing countries accounted for nearly 76% of the global diamond production in 2013. They are no doubt the most important sources of diamonds by volume. By value, they represent more than 65% of the world’s 14 billion production.
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Get PriceLoose diamond prices are a result of all the 4Cs and the certification. To find loose diamonds that fit your budget you have to decide which of the 4Cs is the most important to you. If diamond carat is your priority, you could choose a diamond with a G, H or I color grade, rather than the premium D, E and F.
Get PriceFor example, a diamond graded to be G color by EGL/IGI might probably be graded as an I color by GIA/AGS. The same goes for diamond clarity grading. A stone that is graded as S11 might end up being an I1 grade when it is certified by GIA.
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Get PriceThe 4Cs, created by GIA, are considered the global language of diamond quality. 2 Carbon. Diamond is the only gem composed of one single element: carbon. 3 A billion years. Most diamonds formed more than a billion years ago, deep in the earth’s mantle. Quality Factors.
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Get PriceOur online Verify Your Report service is available for IGI grading reports issued after June 2004. Verify Your Report permits quick and convenient confirmation that the information on your report matches what we have recorded in the IGI database.
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Get Price(approximately 65%). The diamond industry employs approximately ten million people around the world, both directly and indirectly, across a wide spectrum of roles from mining to retail. Global diamond jewellery sales continue to grow, increasing threefold in the past 25 years, and are currently worth in excess of US72 billion every year.
Get PriceDiamond cutting is the practice of changing a diamond from a rough stone into a faceted gem. Cutting diamond requires specialized knowledge, tools, equipment, and techniques because of its extreme difficulty. The first guild of diamond cutters and polishers (Diamantaire) was formed in 1375 in Nuremberg, Germany, and led to the development of various types of "cut".
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Get PriceDiamond Producers and Consumers. Most of the world's natural gemquality diamonds are mined in countries where citizens do not purchase a lot of diamond jewelry. The leading consumers of diamond jewelry include the United States, India, China, the European …
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Get PriceGIA, AGS, EGL and other diamond grading certificates. Diamond certificates, or certs, as they are known in the diamond industry, are often called the fifth C, in addition to the wellknown 4Cs of diamond stones: carat weight, cut, color, and clarity. ... Why is buying a certified diamond better than buying a stone without a cert?
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Get PriceDiamond is a solid form of the element carbon with its atoms arranged in a crystal structure called diamond room temperature and pressure, another solid form of carbon known as graphite is the chemically stable form, but diamond almost never converts to it. Diamond has the highest hardness and thermal conductivity of any natural material, properties that are utilized in major ...
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Get PriceThe largest diamond ever discovered was called the Cullinan diamond, and weighed in at an amazing 3106 carats, or pounds. Discovered in 1905 in South Africa, the mine’s owner and the South African leaders gave the diamond to King Edward.
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