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Diamonds occur in a variety of colors—steel gray, white, blue, yellow, orange, red, green, pink to purple, brown, and black. [2] [3] Colored diamonds contain interstitial impurities or structural defects that cause the coloration; pure diamonds are perfectly transparent and colorless. Diamonds are scientifically classed into two main types ...
Some jewelry experts advise consumers to buy a 0.99-carat (198 mg) diamond for its better price or buy a 1.10-carat (220 mg) diamond for its better cut, avoiding a 1.00-carat (200 mg) diamond which is more likely to be a poorly cut stone.
International Gemological Institute (IGI), independent laboratory for grading and evaluation of diamonds, jewelry, and colored stones; Hoge Raad Voor Diamant (HRD Antwerp), The Diamond High Council, Belgium is one of Europe's oldest laboratories; its main stakeholder is the Antwerp World Diamond Centre
Rahul Kadakia, international head of jewelry at Christie’s, agreed that pink and purple spinels “should continue to see market appreciation,” and shared that fine examples sell for up to ...
Forget bling, De Beers has found a surprising use for lab-grown diamonds outside of luxury jewelry, and business is booming. Prarthana Prakash. Updated December 9, 2024 at 3:24 PM.
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]
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