The popular gem shape seen here is named for this fruit
In 
1995, Sotheby's sold a 100.1-carat, pear-shaped "D" flawless... [DOC] [TLE] Diamond Color Chart, Diamond Clarity Chart, Diamond Grading ... [PAR] Learn about diamonds - The 4 C's, shapes with pictures, popular diamond cuts, 
diamond ... What are the four C's?