It's the largest known "fancy intense pink" diamond. It weighs 37.30 carats and was valued at up to 30 million dollars. But the the "Raj Pink" diamond failed to sell at auction house Sotheby's semi-annual jewel sale on Wednesday (November, 15) in Geneva. (SOUNDBITE) (English) SOTHEBY'S INTERNATIONAL JEWELLERY DIVISION'S WORLDWIDE CHAIRMAN DAVID BENNETT SAYING, TALKING ABOUT THE "RAJ PINK" DIAMOND: "At 14 million francs... Thank you ladies and gentlemen... It is not sold. And thank you all very much indeed." But the bad luck did not end there for Sotheby's: (SOUNDBITE) (English) SCREEN SHOWING WITH MOUSSAIEFF DIAMOND RING AND AUCTION PRICE AT CHF 12,400,000, WHILE DAVID BENNETT IS HEARD SAYING: "12 million 4 hundred... Unfortunately not sold" A blue diamond ring by Moussaieff failed to sell. (SOUNDBITE) (English) SOTHEBY'S INTERNATIONAL JEWELLERY DIVISION'S WORLDWIDE CHAIRMAN DAVID BENNETT SAYING, TALKING ABOUT THE PAIR OF YELLOW DIAMONDS THAT FORMERLY BELONGED TO THE VON DONNERSMARCK FAMILY: "7 million 8 hundred thousand francs... 7 million 8 hundred. Not sold." And a pair of yellow diamonds that once belonged to the German princely Von Donnersmarck family had the same fate. But it wasn't all bad news, a Harry Winston light pink diamond ring sold for 12.6 million Swiss francs. Still only 303 of the nearly 350 items sold according to Sotheby's figures. Proving that at actuion - not all that glitters turns to gold, dollars or Swiss Francs.