Reveals new details about this historical jewel and the results of its first gemological analysis.

Documents a visit to the sapphire, opal, and emerald mining and trading areas of Ethiopia.

Establishes a metamorphic origin for sapphire samples from these deposits, supported by their trace-element composition and inclusion characterization, including the age dating of zircon inclusions.

Shows how alexandrite’s color and color change are affected by cut and the orientation of table facets.

Investigates trace-element chemistry of freshwater natural pearls from North America and China with LA-ICP-MS and uses LDA to identify their origins.

A wholesaler supplying the bridal market with recycled gemstones and antique cuts shares his thoughts on the market and on responsible practices.

The World Jewellery Confederation (CIBJO) released the first edition of the Responsible Sourcing Book in January 2019.

An overview from the 2019 Tucson gem shows.

Trapiche-like ruby from Kashmir shows a well-formed fixed six-rayed pattern.

Susi Smither discusses her sustainable, responsible, and ethically based business practices.

Jeff Hapeman of Earth’s Treasury (Westtown, Pennsylvania) loves a gemstone with a good story.

Mother-and-son team Laurie and Geoffrey Watt (Mayer & Watt, Maysville, Kentucky) noted that while there were plenty of customers at the AGTA show this year, the formula for success was a wide selection of materials and competitive pricing.

The third Jewelry Industry Summit, held in Tucson February 2–3, revealed the successful implementation of several initiatives mapped out since the conference’s inception in 2016.

The Jewelry Development Impact Index (JDI), one of the initiatives from the second Jewelry Industry Summit in January 2017, has become the flagship project of the Minerals, Materials and Society (MMS) program at the University of Delaware. Patricia Syvrud, development manager of MMS, discussed the program, which she calls a “road map to responsibility.”

Advanced testing helps to identify the largest gahnospinel seen at any GIA laboratory.

Thoughts from a longtime Tucson exhibitor on responsible practices and the changing market trends.