Donald Clark, CSM IMGIGS may receive customer referral fees from the companies listed in this page. Learn more. All budding gemologists and gem cutters have probably faced the following scenario: Sitting at a table in your laboratory (or your gem room in your apartment), you examine your newest prized gem. Suddenly, almost silently, it disappears from between the tweezers! Your…
Hby Jeff R. Graham SUMMARY: Some people make distinctions between different kinds of synthetic or lab-grown gems. In fact, you may even find different definitions of synthetic material. Two other terms commonly used in jewelry are simulated and created gemstones. To clarify matters, here are some general definitions of these words. READING TIME: 4 MIN Futuristic 18k white gold bracelet…
In recent years, Nigeria has gained considerable attention in the gem trade for the discovery of sapphires reportedly from the Mambilla Plateau in Taraba State. In addition to sapphires, spinels have been sporadically mined in Jemaa and recently in Kagoro, both in Kaduna State (figure 1). The spinel group of minerals, with a general chemical formula AB2O4, has a…
The most unusual and exquisite things are often found in unexpected places. This has been seen in the explosion in gem discoveries in East Africa since the latter part of the twentieth century. However, West Africa has remained relatively underexplored, despite the development of some promising and productive gem deposits, including sapphire and Paraíba tourmaline in Nigeria. West Africa’s…
Nigeria could earn well over $12 billion from gemstones annually if it invests in a laboratory to certify the value of the precious stone, a Professor of Business Administration, Adesoji Adesugba, said at the just concluded 3rd edition of the annual African Gemstones and Jewellery Exhibition and Seminar (AGJES), in Abuja Mr Adesugba said the country’s current income of…
Nigeria could earn well over $12 billion from gemstones annually if it invests in…
Gemstones Miners and Marketers Association of Nigeria (GMMAN) presents its compliments.Gemstones Miners and Marketers…
The National Coordinator, Engr. Adeniran Ajibade and the Executives of Gemstones Miners and Marketers…
