RAPAPORT... Firestone Diamonds' stock price rose more than 11% Friday afterthe company announced it had unearthed a 46-carat white diamond at itsLiqhobong mine in Lesotho. The stone - which the miner recovered undamaged - willgo on sale at the company's next tender at the end of January, it said Friday. The company also noted an increase in prices for itssmaller, lower-value stones at its December sale. Image: The 46-carat white diamond. (Firestone Diamonds)