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This is a list of countries by diamond production in 2016, based on the British Geological Survey Mineral Statistics Summary for 2016. [ 3 ] 2016 Diamond production
The weight of a diamond is one of these variables that determines a diamond’s worth and is what the general public is most familiar with. The unit of measurement, called the carat, equals 200 ...
Diamond reports from GIA (as well as other, for-profit sources) are now demanded by most consumers purchasing diamonds over a certain size, typically for over 0.5 carat (100 mg), and almost always for over 1.0 carat (200 mg), and are considered an important tool in guaranteeing that a diamond is accurately represented to a potential buyer.
This stone was the 19th biggest uncut diamond ever found and was sold in February 2010 to Chow Tai Fook Jewellery for $35.5m, the highest price ever paid for an uncut diamond. [10] The previous record was held by Gem Diamonds' Leseli La Letšeng, which was bought for $18.4m by Graff Diamonds in December 2008. [11]
The investment parameter of diamonds is their high value per unit weight, which makes them easy to store and transport. A high-quality diamond weighing as little as 2 or 3 grams could be worth as much as 100 kilos of gold. This extremely condensed value and portability does bestow diamonds as a form of emergency funding.
On 21 September 2017, TASS news agency reported Alrosa's most expensive gem to date, a 28.65 carat pink diamond. The largest pink diamond previously mined by Alrosa weighed 3.86 carats, one of a total of only three others that the company has mined of over two carats each during the past eight years.
The company specializes in the mining, processing and sale of coloured gemstones, in particular emeralds and rubies. The group sells rough, uncut gemstones and does not operate any cutting and polishing facilities. The company owns the Kagem emerald mine in Zambia and the Montepuez ruby mine in Mozambique. Gemfields produces around 25% of the ...
The Diamond Trading Company (DTC) is the rough diamond sales and distribution arm of the De Beers Group. The DTC sorts, values and sells about 35% of the world’s rough diamonds by value. [ 1 ] The DTC has a combination of wholly owned and joint venture operations in South Africa (DBSSSA), Botswana (DTCB and DBGSS), and Namibia ( NDTC ).