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.
Beef Types and Grades. Most cows raised in the U.S. are Angus, Hereford and Shorthorn. Certified Angus Beef is a marketing term, but an effective one; it applies to most of the beef in U.S. stores [sources: Miller, The Nibble ].A cow's diet has a major role in the flavor of beef.eef Types and Grades. Most cows raised in the U.S. are Angus, Hereford and Shorthorn. Certified Angus Beef is a marketing term, but an effective one; it applies to most of the beef in U.S. stores [sources: Miller, The Nibble ]. A cow's diet has a major role in the flavor of beef.