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This diamond initial necklace comes in all the letters of the alphabet and is the perfect gift this holiday season.
The Argyle Pink Jubilee is a rough pink diamond and the largest rough pink diamond unearthed in Australia. It was found at the Rio Tinto Argyle diamond mine in Western Australia. [2] [3] Large stones like the Jubilee typically go to museums or end up at high-profile auction houses like Christie's.
For example, a "D" or "E" rated diamond (both grades are considered colorless) is much more valuable than an "R" or "Y" rated diamond (light yellow or brown). This is due to two effects: high-color diamonds are rarer, limiting supply; and the bright white appearance of high-color diamonds is more desired by consumers, increasing demand.
Pink diamonds can occur in eight intensities, faint pink, very light pink, light pink, fancy light pink, fancy pink, fancy intense pink, fancy vivid pink, fancy deep/dark pink. [13] Just like in all fancy color diamonds, the more vivid intensity pink diamonds are far rarer than the less vivid, which is in part why they demand a higher price.
Diamonds can be sold already set in jewelry, or sold unset ("loose"). According to the Rio Tinto, in 2002 the diamonds produced and released to the market were valued at US$9 billion as rough diamonds, US$14 billion after being cut and polished, US$28 billion in wholesale diamond jewelry, and US$57 billion in retail sales. [110]
These diamond saws and good jewelry lathes enabled the development of modern diamond cutting and diamond cuts, chief among them the round brilliant cut. In 1919, Marcel Tolkowsky analyzed this cut: his calculations took both brilliance (the amount of white light reflected) and fire into consideration, creating a delicate balance between the two ...