Until the mid-20th century, there was no standard approach to assessing the quality of diamonds. This changed when, in about 1940, Robert M Shipley, a jeweler who professionalized and revolutionized the jewelry industry in America, helped to devise the 4Cs grading system. The 4Cs system is based on grading of the diamond’s Cut, Color, Clarity and Carat weight. It […]...
Recently, it was reported that the Sarine Profile™ digital diamond story would soon also offer automated clarity and color information, as well as diamond authentication of natural vs. synthetic diamonds....