In an article titled "AMS mistakenly identifies natural diamonds as synthetic", published on the Rough & Polished website on January 26, 2015, we noted some fundamental inaccuracies - particularly in the headline - and would like to consider them.
First, we would like to explain to your readers that the Automated Melee Screening Device (AMS) never took a natural diamond for synthetic, and all such claims in the past have been proven to be false. We explained from the very beginning that AMS is an instrument for verification and use in the industry. It is designed to check a large volume of small diamonds in a quick and effective way, and as a result, it sends a very small percentage of the tested stones for additional research, which is a normal and expected part of the process. In the course of an inspection, which takes only a few seconds for each stone, The device reveals the vast majority of natural diamonds and at the same time sends for a further test a very small percentage of natural diamonds and all synthetic and fake stones. According to the data given in the article, the share of diamonds sent for additional verification is 1.5 - 3%. It is therefore incorrect to say that the AMS determines the stones planned for additional verification as synthetic - it simply identifies them as requiring further testing in order to determine whether they are synthetic.
Secondly, it is important to note that the De Beers group of companies also worked hard to produce a device that allows these stones sent for additional tests to be checked in a more economical way, and we are disappointed that in the certification laboratories the costs of testing such stones are high. For this reason, we concentrate all our efforts on being able to offer a lower cost verification service for the AMS shipped by the AMS for additional stone research in India, introducing it this year in our new laboratory of the International Institute for the Classification and Research of Diamonds and Diamonds De Beers Group of Companies (De Beers Group of Companies IIDGR) in Surat. In addition to this, we have already worked in partnership with the Gemological Institute of India (Gemmological Institute of India, GII) in Mumai, helping them set up the Diamond Detection and Resource Center (DDRC); in partnership with the National Gemstone Testing Center (NGTC) of China, worked to provide a stone inspection service throughout the country; and also supplied stones testing equipment to the Israeli Diamond Exchange (IDE).