Duncan Pay, April 30, 2014
Fine unheated tanzanite, untreated yellow sapphire and heated pink zircon on display at GJX in Tucson.
Read MoreJennifer-Lynn Archuleta, January 31, 2014
The centrepiece of this brooch is a 98.67 ct Melo pearl, believed to be one of the world's largest.
Read MoreDuncan Pay, April 30, 2014
Rings featuring "wheels of light", generated by coloured gem materials and sealed with quartz, were on display at the 2014 GJX show in Tucson.
Read MoreDuncan Pay, April 30, 2014
Red beryl, mined from Utah and displayed in both loose form and in suites of jewellery, was seen at the AGTA show in Tucson.
Read MoreDuncan Pay, April 30, 2014
Alluring finds at the 2014 gem shows in Tucson.
Read MoreDuncan Pay, April 30, 2014
A summary of the findings at Tucson’s 2015 gem shows.
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