GSI is a leading gemological lab offering a variety of gemological services worldwide. From basic grading service to the most sophisticated testing and examination using advanced instruments, GSI does it all. Every diamond is unique and differs in quality, shapes, and sizes. A diamond, natural or lab grown, is assessed for its quality based on a combination of many factors.
GSI, with its proven industry expertise and ethical integrity, provides objective, consistent, and standardized grading services across all global branches. Every diamond is evaluated by following widely accepted parameters and procedures. GSI’s grading service includes a comprehensive analysis of your diamond including an evaluation of your diamond’s 4C’s – Cut, Color, Clarity, and Carat weight, along with other essential analysis. GSI also maps the clarity characteristics of your diamond in its plotting reports. GSI provides an unmatched and accurate grading service so that every diamond and jewelry is accompanied by reliable documentation. To know more about our grading reports, click here.