However, in 2005, it was reported that miners in Madagascar dug up a gem weighing 1,182 pounds which has also been feted as the world's largest emerald. Of less contention is the largest known pearl which was found by a Filipino diver off the island of Palawan in 1934.
USDA Beef Grades. Beef is graded for quality by U.S. Department of Agriculture (USDA) graders according to standards established by the USDA. Grades are based on the amount of marbling (flecks in fat within the lean) and the age of the animal.
There are some grades for WAGYU beef, including the meat of Japanese Black, and A5 is the highest grade given only to the finest beef.herefore, âJapanese black beefâ is different from other species of cattle, but has a special deliciousness of its own. Smooth velvety texture, juicy flavor, delicate but rich taste will linger on the palate.