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.
All beef products sold across state lines must be USDA inspected. Even small locker plants must be inspected by state inspectors for safety. USDA graders evaluate and then rate, or rank, beef carcasses for quality (quality. grades) and cutability (yield grades). They also certify beef for various USDA Certified. programs like Certified Angus Beefï or Certified Farmland Black Angus Beefï.