What is a GIA certificate? What is its role?

The GIA certificate, or the GIA Diamond Grading Report, is an identification certificate issued by the Gemological Institute of America (GIA). It serves as the basis for the sale and purchase of diamonds all over the world and is recognized by international diamond dealers as the most credible certification in use today. GIA assesses and grades each diamond before issuing a GIA Diamond Grading Report which accurately reflects its quality, thereby protecting the interests of buyers.

 

  

GIA Diamond Grading Report

Like a diamond ID, the GIA Diamond Grading Report is a detailed record of the quality of the diamond based on the 4Cs of diamond grading, including Carat, Color, Clarity and Cut, as well as fluorescence reactions, size ratios and so on. Some grading reports will be accompanied by a diagram of inclusions (this is more common for diamonds of more than one carat). Since diamonds are an expensive investment, all loose diamonds of more than 0.3carats sold by Diamania come with GIA Diamond Grading Reports to give our customers confidence and peace of mind. We advise customers to avoid purchasing diamonds that do not come with a diamond certificate at the time of sale.

 

Every diamond of more than one carat comes with a Diamond Grading Report that offers a record of its weight, grade, proportions and the most important diamond inclusions and blemishes. The nature, position, size, quantity and relief of clarity characteristics are also considered.  GIA Diamond Grading Report features a diamond report number and certificate laser barcode, providing effective and complete identification of each diamond.

 

Diamonds below one carat come with Diamond Dossiers that do not include a diagram of diamond inclusions.

 

 

The unique GIA Report Registry number of all loose diamonds above 0.3carats can be micro-laser inscribed onto the diamond’s girdle. Customers will be provided with a magnifying glass to verify for themselves that the diamonds are GIA certified and that the Diamond Grading Report corresponds with the diamond they purchase.

  

Checking GIA Diamond Grading Reports

An online service (at https://www.gia.edu/report-check-landing) is available at the official GIA website which customers can use to check the authenticity and accuracy of their GIA Diamond Grading Report and Diamond Dossier. All customers need to do is enter their GIA certificate number on the website or scan the QR Code on the certificate to locate the details. At present, this service is only available for diamonds graded from the year 2000.

A GIA laboratory is set up in Hong Kong to provide customers with the ability to check all GIA-certified diamonds. It verifies that the customer has received GIA Diamond Grading Report corresponds with the diamond he/she has purchased, thus safeguarding the interests of the customer and providing them with confidence in the value of the diamond they have purchased. Please note that the service takes approximately two weeks and customers who use this service will settle the cost of the service directly with GIA. More, this service is not available for all mounted diamonds. Relevant details and fees could be found here.