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Buying Diamond Guide : What is GIA ?

GIA is an independent, nonprofit organization that conducts gem research, educates gem professionals and sets the standards for determining diamond quality.


One of GIA’s main functions is the grading of diamonds. You may have already heard or learned about the 4Cs of diamond quality: color, clarity, cut and carat weight. GIA created this standard, along with the scientific procedures for evaluating each “C” and the grading terminology used to describe them.


GIA doesn’t certify diamonds – it grades them. The terms “GIA certified” and “GIA cert” are commonly used in the jewelry industry to refer to diamonds that have undergone GIA’s rigorous grading process and to the reports that accompany them.


Is every diamond a GIA diamond ?

No, not all diamonds have been graded by GIA. Although it may seem that way given the sheer quantity of GIA-graded diamonds in the marketplace. This volume is a testament to the trust jewelers and their customers place in GIA’s accurate and independent grading services.


Do “GIA certified” diamonds cost more?

The price of a diamond, a car or any other item of value is tied to quality. If you can’t be sure of the quality you’re getting, how do you know if you’re paying too much or getting a good deal? That’s why it’s important to compare prices for diamonds that have the same 4Cs quality characteristics and whose qualities have been accurately and objectively graded by the same independent laboratory like GIA.


What kind of information is on a GIA diamond report and what does it mean?

A GIA report contains a full scientific and unbiased assessment of your diamond’s 4Cs. GIA tests every diamond submitted to establish its authenticity as a diamond and whether it’s been subjected to treatments. GIA reports provide a full description of the diamond, including color, weight, measurements, and cutting style, and disclose any known treatments.

TCS JEWELLERY (TCS SIGNATURE SDN. BHD)


Lot No. AP-001, Ground Floor, The Place @ One City, Jalan USJ 25/1A, 47650 Subang Jaya, Selangor, Malaysia


Telephone: +60 11 6548 1718


Email: marketing@tcsjewellery.com.my

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