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GIA color grading
GIA Recalls Diamonds over Treatment Query
The Gemological Institute of America (GIA) has asked customers to return a number of colored diamonds for reassessment, suspecting
News Apr 18, 2021 Joshua Freedman
GIA treated green-yellow diamond Apr 2021
‘Peculiar’ Coloring Helps GIA Spot Treatment
The Gemological Institute of America (GIA) has identified a fancy-color diamond containing rare lines of blue, positing that
News Apr 08, 2021 Rapaport News
Mumbai Gateway to India
Mumbai Diamond Services Get Approval to Continue
Diamond-grading laboratories and other industry services are allowed to operate during Mumbai’s Covid-19 lockdown, according to a clarification
News Apr 08, 2021 Rapaport News
GIA counterfeit inscription
Diamonds with Fake Inscriptions Turn Up at GIA
The Gemological Institute of America (GIA) has recently received “a number of” lab-grown or treated stones carrying natural-diamond
News Feb 23, 2021 Rapaport News
Surat diamond cutters
‘Naturalmark’ Aims to Defeat Undisclosed Synthetics
A new project to combat undisclosed synthetics has launched in India, offering retailers low-cost screening and inscription using
News Jan 03, 2021 Joshua Freedman
Jonathan Kendall, De Beers
De Beers Exec Jonathan Kendall to Retire
Jonathan Kendall, a key executive in De Beers’ downstream activities, will retire at the end of the year following two
News Nov 15, 2020 Rapaport News
GIA dossiers
GIA Considers Shutting Antwerp Lab
The Gemological Institute of America (GIA) plans to close or heavily scale back its Antwerp operations following a review
News Aug 30, 2020 Rapaport News
GIA Scholarships
GIA to Unlock New York Lab
The Gemological Institute of America (GIA) is reopening its New York grading laboratory Monday following a three-month shutdown
News Jun 25, 2020 Rapaport News
HRD Antwerp
HRD Antwerp Receives Two Takeover Bids
The International Gemological Institute (IGI) and industry veteran Peter Meeus have put in rival bids to acquire
News Nov 06, 2019 Joshua Freedman
GIA color grading
GIA Cuts Prices 10% Amid Market Slowdown
The Gemological Institute of America (GIA) has temporarily reduced grading fees for certain smaller diamonds after
News Jul 16, 2019 Joshua Freedman
Aurelien Delaunay
The Gem Lab That Refuses to Grade Synthetics
The French Gemmological Laboratory (LFG) is the oldest of its kind in the world. Founded in 1929, it came into
News May 06, 2019 Marie Chabrol
GIA 150
GIA Spots Treatment Fraud with 6ct. Polished
The Gemological Institute of America (GIA) has uncovered a treated diamond carrying a false inscription that fraudsters had
News May 30, 2018 Rapaport News
NGTC GII collaboration
India and China Labs Cooperate
Two major gemological institutions in India and China have agreed to increase their collaboration in an effort to strengthen trade
News Nov 27, 2017 Rapaport News
IGI diamond ID report
Labs Launch Credit Card-Sized Grading Reports
HRD Antwerp and the International Gemological Institute (IGI) have both released credit card-sized diamond reports,
News Oct 26, 2017 Joshua Freedman
Diamond vs topaz HRD Antwerp
HRD Detects Topaz Imitating Diamonds
HRD Antwerp has identified two stones that were believed to be diamonds as topaz, reflecting a trend to fool rough
News Jul 16, 2017 Rapaport News
IGI Lab
IGI to Launch Associations in Italy
The International Gemological Institute (IGI) will unveil two new organizations at a jewelry workshop it’s running in Italy
News Jun 13, 2017 Rapaport News
GIA artisanal miners guide
GIA Launches Gem Guide for Artisanal Miners
The Gemological Institute of America (GIA) is piloting a free gemology guide for artisanal miners in producing countries. The
News Apr 05, 2017 Rapaport News
Gübelin Gem Lab
Gübelin Lab Makes U.S. Presence Official
Gübelin Gem Lab has launched a permanent location in New York as part of a global expansion program that has
News Jan 22, 2017 Rapaport News
Peter Macken HRD Antwerp
HRD Antwerp Parts Company with CEO Macken
HRD Antwerp terminated its contract with chief executive officer Peter Macken after less than 18 months
News Sep 20, 2016 Rapaport News
grading panel
Panelists Address Diamond Grading Standards
In this video presentation, industry panelists discuss grading reports and standards as well as share opinions on best practices
Video Jul 08, 2015 Rapaport News
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