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At Diamond Hallmarking Center (DHC) we measure our success by yours! By promoting professionalism in the gem and jewellery industry through world-class education and laboratory services, our vision is to see India emerge as a global leader in this highly competitive market.

The gemstones we provide certification are Agate, Alexandrite, Almandine, Amazonite, Amber, Amethyst, Ametrine, Ammonite, Andalusite, Apatite, Aquamarine etc...

As the need for diamond increased the reduction in quality have been made by many dealers. So purchase your precious diamonds having quality certifications.

There are different courses on different subjects. But gemology is quite different. There are only few institutes which provide course in gemology. DHC international provides different courses in gemology. Gemology deals with the study of natural and artificial gems.

Diamonds are expensive, rare and precious. Quality of a diamond can be determined by its certification. Diamond cut have an important role in quality of diamonds.

It is easy to check the quality of a diamond by knowing more about diamonds. Here are some important factors which determine the quality of a diamond.