Gemstone certification means to evaluate a piece of stone on the basis of different quality parameter’s which establishes by the gem industry to determine the quality and other characteristics of different gemstones.A gemstone expert subtly examine or measure the minor details of a stone and issue a detailed report based on the conclusion of gemstone inspection.The report, which is issued by a gemologist or gemstone expert is referred to as certification report. A gemstone certification report incorporates all measurements and characteristics of a stone evaluated by a trained gem expert.