Prices of smaller goods, below one carat, continued to rise in December after increasing in November, responding to rising demand in the consumer market. Larger goods, however, which suffered from price declines in November, experienced a long-awaited revival, rising 1-1.5% in December, according to the Mercury Diamond Global Tracker™ (MDGT™). The MDGT™ index averaged 109.45 in December 2018.