The Steinmetz Pink diamond was discovered in southern Africa and is the largest Fancy Vivid Pink diamond known in the world. Pink diamonds are extremely rare. The Steinmetz Pink weighs carats and has been graded as Internally Flawless.
The Heart of Eternity was found in a mine in South Africa and it has a “fancy vivid blue color”, making it an extremely rare diamond. Apparently, the blue color is given by impurities of boron and most of the gems are not entirely blue.
Other dazzlers in the exhibit include a brilliant-cut intense-pink diamond set in gold with smaller pink diamonds, designed by Carvin French with diamonds from Rio Tinto's Argyle Mine in Australia _ Jewelry Insider™: Diamond Rainbow Shines in New York
The Paraíba deposit revealed a range of new tourmaline colors unrivaled for their strongly saturated hues and light to medium tones. Representing the color range are a turquoise-blue triangle cut, a electric-blue pear shape, and a green pear shape.
The Pink Star diamond: The flawless pink diamond is the largest in its class ever graded by the Gemological Institute of America (GIA), with the second biggest less than half its size. Sold for 83 million dollars at auction.