In this issue, you will see the third part of the series Uncover the Inner World of Gemstones, detection and analysis, introduces the advanced technology from morphological, chemical, and spectral aspects applied to inclusion study in gemstone with their principles and application case was demonstrated.

The Gem News column provides you the latest and detailed information on the gem and jewelry industry. In this issue, authors Andrew Lucas and Ruby Liu present a full picture of Chanthaburi's current colored gemstone market information. Hu present us the brilliant thousand-year-old civilization of Afghanistan.