GIA Certified Diamond

Appearing in 1931, the founders of GIA set out from the beginning to shed light on and clarify the gemstone industry. Then, as of now, the market was saturated with counterfeit products.

GIA is also the basis of one of the most important inventions for verifying the authenticity of a diamond: the magnifying glass with a flattened three-lens system. Then they developed Diamond Scope for verifying dark areas of diamonds.

Thanks to GIA, today we have finalised the four criteria that underlie the evaluation of a diamond (also known as 4C): colour, clarity, carat and cut.

GIA is a non-profit organisation that regularly researches gemstones and constantly sets new standards that determine the quality of diamonds. Valmand customers are delighted to learn that we meet all of these standards.

The GIA does not deal with diamond mining, buying or selling diamonds. It operates independently of the market, concerned only with the quality of manufacturers such as Valmand and other stores.

Also known as the "High Diamond Council", HRD was established in 1973 in Antwerp, the Netherlands. HRD has, from the outset, set out to be the European equivalent of the GIA.
HDR monitors and reports the imports and exports of more than half of the world's diamonds, representing the diamond market among institutions and several organisations.

HDR is also one of the leading organisations in the field of research and education in the diamond industry, which is why HDR certification is so popular with jewellers and clients.

Founded in Belgium more than 30 years ago, EGL's mission is to protect the market and promote several services related to education and innovation in the public interest. The lab has built its reputation on innovations in diamond grading and categorisation, with physicists, geologists and mineralogists on the team. EGL certification is a guarantee of the authenticity of the diamond.

The largest gemological laboratory in the world was established in 1975, with branches in all major diamond trading centres. IGI's goal is to provide jewellers and their customers with a reliable educational platform on the authenticity of diamonds.
An IGI certificate contains the analysis of several gemologists regarding the characteristics of a diamond.

Since 1943, AGS has demonstrated a high standard of ethics in the diamond and jewellery industry. AGS offers professional courses to each segment of the industry with the sole purpose of developing the most educated market possible. AGS also set up a laboratory in 1996 to deliver the most efficient grading service to the market.
The high and unbiased standards of the AGS have helped establish genuine respect in the industry.