Diamond certificate you know how much

After much thought, through choice, finally decided to buy the diamond ring, consumers should never forget to require companies to produce diamond grade certificate. How much do you know about diamond certificate but consumers? And know the difference between these certificate on the authority? Let's take a look at the diamond certificate problem. We say 'diamond identification certificate', 'diamond grade certificate', namely 'diamond grading reports' ( 钻石分级报告) By diamond appraisal experts in a specific environment according to the classification standard of strict careful observation and testing diamond issued a report, it tells us the diamond 'how', 'identity' is a diamond. GIA diamond grade certificate - — HRD diamond grade certificate - — AGS diamond grade certificate - — IGI diamond grade certificate - — EGL diamond grade certificate - — NGTC diamond grading certificate - — NGDTC inlay diamond grading certificate - — NJQSIC certificate - — GIC inlay diamond grading certificate - — GAC inlay diamond grading certificate - — CTA inlay diamond grading certificate - — GJC jewelry inspection certificate - — GTC gemstone identification certificate - — All-China Federation of Industry and Commerce chamber of commerce jewelry jewelry industry test research in the above these are all common diamond appraisal certificate, at home there are many diamond grade certificates issued by the various agencies, wide variety. Who is more credible? At present domestic the most authoritative and most strict is the jewelry jade by the state administration of quality supervision, inspection center NGTC inlay diamond grading certificate is issued. National jewelry jade jewelry industry quality supervision and inspection center is China's standard drafter, are mainly of the quality of the jewelry market regulators and arbitration. Some people will ask: get married diamond ring must be your wear, do not give others, the quality of the diamond ring is guaranteed, and necessary to retain the diamond grade, appraisal certificate? The expert's opinion is, no matter you buy diamond jewelry includes the diamond ring is worn or others, its appraisal certificate must be preserved, because it is the only guarantee of diamond quality and value. To identify clear records about the diamond certificate of weight, color, clarity, cutters and other data, information, and the appended drawings painted a diamond, such as surface characteristics or inclusions of revaluation the diamond in the future have very important reference. Therefore, even if the diamond ring, diamond jewelry is for private use, we strongly recommend that you keep the diamond level certificate, appraisal certificate. Before you buy a diamond ring to understand the diamond grade certificate, then you can buy more at ease.