National Jeweler Network

Treatments

04/17/14

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.

02/07/14

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.

11/05/13

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.

09/12/13

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.

09/09/13

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.

02/28/12

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.

02/09/12

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.