RAPAPORT... Gem Diamonds has recovered a 161-carat rough stone, the first over 100 carats it has reported this year. It found the high-quality, white, type IIa diamond on March 21at its Let??eng mine in Lesotho, the company said Friday. Last year, Gem Diamonds found 15 stones weighing more than100 carats, a record for the company. That haul included the 910-carat LesothoLegend, which sold for $40 million. In February, the miner also found a 13.33-carat pinkdiamond, which it sold to Graff for $8.8 million, or $656,933 per carat. Image: The 161-carat diamond. (Gem Diamonds)