 | Gem Diamonds Ltd. has discovered two diamonds larger than 100 carats at its Lesotho mine in southern Africa. The company unearthed a 104.73 carat D color Type IIa diamond and a 151.52 carat Type I yellow diamond at its Letseng mine. Letseng is renowned for the size and quality of its stones, with an average sales price of almost $2,000 a carat, the highest in the industry. |  |
 | The company has suffered recently from a lack of big finds and discovered just five stones bigger than 100 carats last year, fewer than half as many as it found in 2015. |  |
