IGR – Italian Gemological Review #9 – Spring 2020

You can purchase IGR – Italian Gemological Review Issue #9 with the 2020 subscription.

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IN THIS ISSUE:

• Editorial – Striking and ordinary cases in gemology. It’s all good (Paolo Minieri)

• The Diamond View – Let’s insist on transparency and keep working as hard as diamonds (Sergio Sorrentino)

• 10X – Our friends the inclusions. The detective at the party of inclusions. Seventh episode (Luigi Costantini and Claudio Russo)

• GEM NEWS – How social media and e-commerce are changing the gemstone trade
• GEM NEWS – Fura’s tears crystallized in emeralds. Superb specimens on display in New York
• GEM NEWS – Gem Mining in the ice. Greenland plays the card of polar rubies
• GEM NEWS – Welcome dutrowite, a new tourmaline

• YouTucson, the actual gemstone platform (Michele Macrì)

• The slow agony of the Kimberley Process. Ethics in the COVID-19 times (Paolo Minieri)

• A comparative mathematical analysis of the internal reflections in a spherical concave faceted vs. a plane faceted gem (Raffaele Zancanella)

includes the insert:

• A complex brilliance pattern which can hide inclusions. Pros and cons of concave faceting (John Dyer)
• Raffaele Zancanella: a welcome and a goodbye (Luigi Costantini)

• Rabbit’s Eye Red and Golden Red. GIT’s New Ruby Color Standards (Thanong Leelawatanasuk, Wilawan Atichat, Visut Pisutha-Arnond, Chakkaphan Sutthirat and Jirapit Jakkawanvibul)

• A journey into the Mediterranean coral (Corallium Rubrum) manufacturing process (Francesco Sequino and Stefania Coppola)

• The resounding mantra of the gemstone geographical origin (Alberto Scarani and Paolo Minieri)