If you know what grading is, you must also know that it is done in the gemological laboratories. These laboratories are specially designed to certify the diamonds and give them grades according to the symmetry, color, carat and other characteristics. Before you buy diamonds, know the different labs that provide certifications to the diamonds and make them acceptable globally. The reputation of the labs can even change over the years and some popular gem labs that are listed here.

GIA – (gemological institute of America) this is one of the most sought after labs and many people in the diamond industry consider their certification to be the best and the topmost. Throughout the diamond world, certificates from GIA have been given a lot of importance and preference.

American Gem Society Laboratories is also based in US and was founded in the year 1978.

IGI – (International Gemological Institute) this institute has its headquarters in New York and provides grading to the diamonds and other gemstones from their headquarters only.

Another institution is European Gemological Laboratory that has a number of independent grading labs named after it and affiliated to it.

Grading from the laboratories is important, as certificates have to be given along with the diamonds that the people purchase. The certificate lists a number of options and descriptions. These laboratories are independent and work to evaluate the diamonds in question. A number of instruments are used by the Gemological Institutes to check the diamonds and give them grades. When the certificate of the diamond is viewed, the name of the lab is given a lot of importance. It is important to get these certifications from the labs as the minutest of the details make a difference to the price of the diamonds and their quality. Without proper certification and assessment, no diamond can be rightly priced.