Timothy Adams, April 30, 2014
Review of Van Cleef & Arpels: Treasures and Legends, by Vincent Meylan.
Read MoreZiyin Sun, April 30, 2014
Review of Wonders Within Gemstones II, by Anthony de Goutiere
Read MoreDuncan Pay, April 29, 2015
A summary of the findings at Tucson’s 2015 gem shows.
Read MorePaul Johnson and Kyaw Soe Moe, April 30, 2015
A Fancy black round brilliant diamond has an inclusion that is revealed to be a natural diamond crystal.
Read MoreDuncan Pay, April 30, 2015
Striking Tanzanian garnets showing color shifting at the Riverpark Inn (Pueblo) show in Tucson.
Read MoreJoyce Wing Yan Ho, April 30, 2015
A purple non-nacreous specimen is revealed to be a natural northern quahog pearl.
Read MoreDonna Beaton and Akhil Sehgal, April 30, 2015
A gemological examination of chrysocolla in quartz from Tucson’s AGTA show.
Read MoreRachel Sheppard, Ulrika D’Haenens-Johansson, Kyaw Soe Moe, Tom Moses, and Wuyi Wang, April 30, 2015
The New York lab discovers a synthetic melee diamond in a pendant, underscoring the importance of testing for undisclosed synthetics.
Read MoreDuncan Pay, April 30, 2015
A review of Chinese freshwater cultured pearl production, with an update on the market for Tahitian, South Sea, and akoya cultured pearls.
Read MoreDuncan Pay, April 30, 2015
Garnets and a wide variety of tanzanite at the Tucson gem shows.
Read Morepast gems & gemology issues