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 is inspected for wholesomeness by the U.S. Department of Agriculture (USDA)*, and is graded for quality and consistency. Youâve heard of Prime, Choice and Select grades â and Prime tops the grading scale. Marbling plays a big role in quality grades.