Rare material seen at the GJX show in February 2015.

A uniquely carved tourmaline suite on display in Tucson.

A purple non-nacreous specimen is revealed to be a natural northern quahog pearl.

An introduction to Moroccan amethyst, which features distinctive color zoning and inclusions.

An up-close look at the cultured pearl’s role in the gem and jewelry industry.

A translucent Brazilian emerald exhibiting pronounced chatoyancy is examined.

Exceptional stones are recirculated and new production is showcased at the AGTA show in Tucson.

Examination of the largest HPHT synthetic diamonds GIA has examined so far demonstrated significant progress in this growth technology.

Explores the geology, production, and yield of the world’s most commercially important ruby deposit.

A summary of the findings at Tucson’s 2015 gem shows.

Report on changes in Mozambique ruby following low-temperature heating, observed using inclusion analysis, FTIR spectroscopy, and LA-ICP-MS.

2015年も現在のところ、慎重な姿勢が続いています。 ジュエリーの小売売上高、De Beer（デビアス）の展示会、サザビーズやクリスティーズのオークションの売上などが現状を表しています。