Gem Knowledge

Top 10 Luxury Brands: The Jewellery Connoisseur's Wish List

Do you dream about a sparkling high jewellery collection featuring world-leading brands? Christa Van Eerde MA MLitt FGA DGA discovers…

Questions to Ask When Buying a Piece of Gemstone Jewellery

Buying a piece of fine jewellery is often an emotional experience. Whether it’s an engagement ring, a wedding band or…

Gem-A Gemstone & Mineral Collection: Understanding Dioptase

Gem-A is proud to own a fantastic collection of gemmological specimens that have been gathered, gifted and bequeathed throughout our…

Understanding the Value of Sapphires

What makes Kashmir sapphires so special? What about the padparadscha? What role do treatments play in value? Here, Gem-A tutor,…

Retail Focus: Exploring the Emeralds of Colombia

From the Summer 2018 issue of Gems&Jewellery, Gem-A gemmology tutor Beth West FGA DGA EG explores the Musica people and…

Investigating Fake Rough with Gem Testing Laboratory Jaipur

From the Summer 2018 issue of Gems&Jewellery, Gagan Choudhary FGA, deputy director of Gem Testing Laboratory Jaipur, describes the various…

Focus on Gemstone Fluorescence: Looking for the Light

Most of us know about fluorescence in gemstones, but how many use it as part of their gemmological testing routine?…

The Fascinating History of Platinum Jewellery

As a gemstone and jewellery grading and identification expert at Lang Antiques in San Francisco, Starla Turner FGA GG has…

The Journal of Gemmology, Volume 36, No. 2. Is Here!

The Gem-A editorial team are excited to launch the latest issue of The Journal of Gemmology, Volume 36, No. 2,…

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