GIA certificate HeGuoJian certificate which good? Where is the difference?

All diamonds can have GIA HeGuoJian ( NGTC) Diamond certificate, and has double certificate diamond quality more. Many customers will ask what's the difference between the inspection certificate of diamond and GIA, certificate of the inspection certificate and GIA diamonds which better? Below with everyone together to do the comparison: national jewelry jade quality supervision and inspection center ( Referred to as the inspection center) Is authorized by the relevant state departments in accordance with the national professional jewelry jade quality inspection institutions, is a leading authority on Chinese jewelry jade detection. Mainly according to the diamond cut, color, clarity, ordinal rank. GIA the American college of gem ( 宝石学研究所的美国) Is the diamond appraisal certificate promotion become internationalization and angel. It is in A. D. 1931 by Mr. Robert Shipley is founded, it has been nearly 70 years of history, GIA is non-profit organization, funded by the jewelry industry to donate, because GIA does not involve a profit-seeking enterprise, reputation the first, under the premise of not due to human factors affect the appraisal result, so in terms of the quality of assessment content, credibility. GIA diamond is the founder of the 4 c, appraisal agencies around the world to GIA standards for reference, the attached GIA diamond certificate diamond is recognized throughout the world, and the guide diamond certificate only work at home, as a diamond relatively GIA diamond rating is reserved, general color and clarity, there is a discrepancy is very normal. GIA is naked diamond grading certificate, and the inspection is usually set auger classification certificate, and this is why someone would think that the more strict than GIA. Because it is two different regions and the authority of the independent testing bodies, so sure there is a slight difference on the evaluation of standard.