National Jeweler Network

Colored Stones


Ahead of meeting, CIBJO issues reminder on rubies

CIBJO’s Coloured Stone Commission has released a report reiterating the terminology that needs to be used for lead glass-filled rubies.


Gübelin Lab opens entry for research scholarship

The Gübelin Gem Lab is accepting applicants for its newly established Dr. Eduard Gübelin Research Scholarship, an annual grant that will be allocated to an innovative research project in the field of gemology. 


Csarite becomes part of the National Gem Collection

Two large, rare color-changing csarite gemstones are now in the Smithsonian Institution’s National Gem Collection, thanks to a donation from Milenyum Mining Ltd.


Co. awarded license to mine rubies in Greenland

The government of Greenland has given Canada’s True North Gems Inc. an exclusive 30-year mining license for the Aappaluttoq ruby deposit in Greenland.


Gemfields emerald, beryl auction nets $36M

Gemfields’ recent auction of predominantly higher quality rough emerald and beryl in Lusaka realized $36.5 million, a company record for any auction. 


Trends from Tucson: Cool colors dominate

The most in-demand stones and colors during the annual Tucson gem shows can set the tone for the year, or even years, to come. So, what was popular this year? Colors on the cooler end of the spectrum were one of the trends spotted at the shows. 


AGTA GemFair buyer traffic up 3 percent

The American Gem Trade Association reports that the 2014 AGTA GemFair Tucson saw a 3 percent increase in buyer traffic from 2013. 


Live from Tucson: A synthetic ruby identifier

Presidium Instruments is showcasing what it claims is the world’s first device to detect flame fusion-created rubies at the American Gem Trade Association GemFair this week.


For new campaign, Gemfields roughs it

Gemfields has a new advertising campaign and emerald-focused tome, and the colored gemstone miner celebrated both amid the snow Monday at the St. Regis Hotel in New York City.