Most people call a diamond's shape "cut." Since January 2006, however, the Gemological Institute of America (GIA) started using the term to refer to the quality of a round polished diamond's workmanship, known as Cut Grade. C...

Heart-shaped diamonds are mentioned in letters between Italian nobility as early as 1463. Mary Queen of Scots gave Queen Elizabeth a ring set with a Heart-shaped diamond in 1562. They even appear in paintings from the era.Today, H...

Pink, blue, green, red or other naturally colorful diamonds are Fancy Color or Colored diamonds. They are very rare creations of nature and the majority of them - more than 85% of the fancy color polished diamonds - are fancy yell...