You can purchase IGR – Italian Gemological Review Issue #5 with the 2018 subscription or receive it for free purchasing the 2019 subscription.
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IN THIS ISSUE:
- 10X – Your friends the inclusions. The detective at the party of inclusions. Fourth episode (Luigi Costantini and Claudio Russo)
- GEM NEWS – New ethical certification procedures will be disclosed in Bogotá and Tucson
- GEM NEWS – Fura Gems replies to Gemfields. A step towards the duopoly of raw rubies and emeralds?
- GEM NEWS – Colombian emeralds on a roller-coaster. The production drops, the value rises
- GEM NEWS – Tourmalines of Congo, a blocked treasure
- GEM NEWS – Blockchain, the future of traceability. Diamonds followed by coloured stones
- GEM NEWS – The new Guidelines from FTC. The definition of “gem” is abolished. Now it’s up to the market
- GEM NEWS – It’s time for grandidierite
- GEMS OF ITALY – Fluorite – Phosgenite – Jade – Glaucophane – Garnet – Haüyna
- REVIEWS – One more book on diamonds? Yes and you can’t miss it. “Diamond – The ultimate gemstone” (Alberto Scarani)
- What is good cut and how good is it? (Victor Tuzlukov)
- Fourier Transform Infrared Spectroscopy (FTIR) and its gemological applications (Alberto Scarani and Mikko Åström)
- The causes of colors of fluorite, a gem Emperor Nero paid one million sesterces (Enrico Butini, Flavio Butini and Francesca Gaeta)
- An approach to color stone grading (Stuart Robertson)
