(IDEX Online ) - The biggest polished diamond ever mined in North America has been bought by Diacore.The Dancing Sun, a 204.36-carat fancy intense yellow VVS2-clarity diamond, was sold at Christie's New York for $4,950,000. Nir Livnat, executive chairman of Diacore, described the purchase as a "pricey feat". The high estimate was $5.5m.The company buys, sells and manufactures high-end gems, including the 203.04-carat De Beers Millennium Star and the 59.60-carat flawless Pink Star.The Dancing Sun was cut from a 552.74-carat rough unearthed at Rio Tinto's Diavik mine in Canada.The rough stone was largest gem-quality diamond ever discovered in North America and the polished gem is also the continent's biggest ever.Pic courtesy Christie's