National Jeweler Network



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.


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.


AGA announces Tucson conference speakers

The Accredited Gemologists Association (AGA) will bring together a number of experts to address opportunities and issues related to the colored gemstone and diamond markets during its upcoming Tucson Conference.


New treatment could damage conch pearls

A Swiss gemology laboratory is warning the trade about a new coating being applied to the surface of conch pearls that does visible, nearly irreversible damage to them.


AGL calls attention to ‘composite’ change

The American Gemological Laboratories (AGL) recently pointed out a “pivotal” change in disclosure nomenclature by CIBJO: the use of the word “composite” now can be used to describe lead-glass treated rubies, a change the AGL said many overlooked following CIBJO’s meeting in May.


AGTA revises gem enhancement brochure

The American Gem Trade Association (AGTA) has just updated its gemstone enhancement brochure, a 20-page booklet that provides comprehensive information on 16 different gemstones.


GIA posts educational glass-filled ruby video

The Gemological Institute of America now is referencing lead glass-filled rubies as “manufactured product” on reports, the institution revealed in a new video designed to educate the trade and the public.