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2. TanzaniteOne - Wikipedia

   en.wikipedia.org/wiki/TanzaniteOne

   They have the ability to purchase large amounts of rough and have wholesale and retail distribution networks in place to facilitate the sale of loose tanzanite and finished jewellery. In August 2013 TanzaniteOne [4] announced they had opened an online boutique, www.tananiteoneonline, which sold tanzanite gemstones and tanzanite set gold ...

3. Kimberley Process Certification Scheme - Wikipedia

   en.wikipedia.org/wiki/Kimberley_Process...

   Ongoing conflicts in Africa. The Kimberley Process Certification Scheme (KPCS) is the process established in 2003 to prevent "conflict diamonds" from entering the mainstream rough diamond market by United Nations General Assembly Resolution 55/56 following recommendations in the Fowler Report. The process was set up "to ensure that diamond ...

4. Gemfields - Wikipedia

   en.wikipedia.org/wiki/Gemfields

   Gemfields Group Ltd (formerly Pallinghurst Resources Limited) is a British mining company incorporated in Guernsey and headquartered in London, United Kingdom, and is a supplier of coloured gemstones. [5] The company specializes in the mining, processing and sale of coloured gemstones, in particular emeralds and rubies. The group sells rough ...

5. Diamond Trading Company - Wikipedia

   en.wikipedia.org/wiki/Diamond_Trading_Company

   www.dtc.com. 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).

6. De Beers - Wikipedia

   en.wikipedia.org/wiki/De_Beers

   c. 20,000. Website. www.debeersgroup.com. The De Beers Group is a South African [3] -British corporation that specializes in the diamond industry, including mining, exploitation, retail, inscription, grading, trading and industrial diamond manufacturing. The company is active in open-pit, underground, large-scale alluvial and coastal mining.

7. Diamond (gemstone) - Wikipedia

   en.wikipedia.org/wiki/Diamond_(gemstone)

   Diamond[a] is a gemstone formed by cutting a raw diamond. Diamonds are one of the best-known and most sought-after gems, and they have been used as decorative items since ancient times. The hardness of diamond and its high dispersion of light —giving the diamond its characteristic "fire"—make it useful for industrial applications and ...