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The Heart of Eternity is a diamond measuring 27.64 carats (5.528 g), rated in color as "Fancy Vivid Blue" by the Gemological Institute of America. The Heart of Eternity was cut by the Steinmetz Group, who owned the diamond before selling it to the De Beers Group. The Heart of Eternity is a member of an exceedingly rare class of coloured diamonds.
1896 map of the Transvaal Gold Fields. The Transvaal gold fields resulted from gold discoveries during the 19th century in the South African Republic. After insignificant discoveries from 1840 up to 1870, payable or substantial gold deposits were found at: Leydsdorp in 1870 and 1883; Geelhoutboom farm, or Mac-Mac diggings, in 1873; Pilgrim's ...
South Africa mined gold production, 1940–2011. South Africa accounted for 15% of the world's gold production in 2002 [23] and 12% in 2005, though the nation had produced as much as 30% of the yearly world output as recently as 1993. Despite declining production, South Africa's gold exports were valued at US$3.8 billion in 2005. [24]
Baken diamond mine: Diamond: Lower Orange River: Trans Hex????–Present Probable reserves are 21.2 million cubic meters of ore at an ore grade of 1.69 carats (338 mg) per 100 cubic meters (3.38 mg/m 3). There is a waste rock overburden of about 33 million cubic meters.
Ring enhancers, also called ring guards, ring wraps, or curved rings are uniquely designed rings, created to be worn with solitaire diamond rings. The sole purpose of a ring enhancer is to complement a diamond solitaire ring with additional diamonds or gemstones , in order to enhance the size and appearance of a solitaire engagement ring .
Example of bead set diamonds Example of pavé set diamonds "Bead setting" is a generic term for setting a stone directly into metal using gravers, also called burins, which are essentially tiny chisels. A hole is drilled directly into the surface of the metal, before a ball burr is used to make a concave depression the size of the stone.