2010年8月25日星期三

Genuine Diamond Certificate

The average person is not armed watches with the proper facts and skills to distinguish good diamonds from the rest.An independent Gemological Laboratory issues the diamond certificate. During the evaluation, expert graders examine the jewel. They employ various geological instruments and determine the characteristics of the diamond in the certificate. The various characteristics in the certificate contain which gemological instruments were employed to observe the diamond properties. As such, the diamond evaluation is essential to the pricing because any slight flaw may affect the stone worth.There are two organizations that are well known diamond certifiers: GIA and the IGI. Both of these organizations are independent laboratories more than qualified to evaluate and certify the diamond. The following is a partial list of the contents of the diamond certificate.Certificate NumberEach laboratory provides a certificate number. This is the number that certifies the diamonds uniquely. The institution will archive a copy of the certificate so that they can reissue, if it lost.Cut and ShapeThere are various shapes such as Heart, Oval, Round and Pear. Additionally, shapes could be in the forms of Brilliant, Emerald, Princess and Marquise.ProportionsProportions of the diamond include depth and table. Depth represents the actual depth of the diamond. The table represents the largest facet of the diamond, sometimes the center piece or main facet. Each of these items is measured by percentages.