RAPAPORT... Gem Diamonds has recovered a white diamond weighing 140carats, the second over 100 carats it has reported this year. It found the high-quality stone on July 6 at its Let??eng mine in Lesotho, the company said Monday.In March, it found a 161-carat white diamond at the deposit. The miner recently recoveredtwo yellow diamonds from Let??eng weighing more than 100 carats. It retrieved a 134-carat stone in March, and another weighing 135-carats last month. So far this year, Gem Diamonds has recovered four diamonds over 100 carats. In 2018, it unearthed a total of 15.Image: The 140-carat diamond. (Gem Diamonds)