Welcome to the Gem-A Blog. Here, you will find up-to-date information on the latest news and trends, exclusive features and regular reports from a host of gemmology insiders. Each month we will share highlights from our printed publications and take you behind-the-scenes at our popular Gem Central events. Would you like to submit an article for the Blog? Email us on This email address is being protected from spambots. You need JavaScript enabled to view it.

An Update on Identification Features of Treated Baltic Amber

An Update on Identification Features of Treated Baltic Amber

Guy Lalous ACAM EG explores a detailed characterization of Baltic amber samples treated in experiments by Wang et al.(2014) in The Journal of Gemmology, whilst discussing the criteria for identifying heat-treated amber using standard gemmological instruments, FTIR and Raman spectroscopy.

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Speaker in the Spotlight: Q&A with Adonis Pouroulis

Speaker in the Spotlight: Q&A with Adonis Pouroulis

Adonis Pouroulis, Non-Executive Chairman of Petra Diamonds is an expert entrepreneur in the exploration and mining of natural sources from diamonds to base metals across Africa. As a leading independent diamond mining company, Petra is a key supplier of some of the most culturally significant stones, involving the sorting, mining, processing and sale of rough diamonds.

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