Each diamond is graded on the basis of 4C’s i.e. Clarity, Cut, Color and Carat-weight. Our team of expert Diamond Graders use international standards to carefully grade every diamond using standard instruments like Proportion Scope, Master Stones & 10x Eye Loupe. This report not only covers 4C’s but also indicates if the diamond is treated or enhanced in any way to its present state. BGTL follows widely accepted GIA - Grading system for grading of Diamonds.