Research Article Search Results

Types

Articles (5)

Topics

See All Topics

Gemstones

Diamond (2) Jade (1)

XClear Selections

Japanese Jadeite: History, Characteristics, and Comparison with Other Sources

Ahmadjan Abduriyim, Kazuko Saruwatari, and Yusuke Katsurada, May 5, 2017

Examines the sources, color, texture, and chemical composition of jadeite from Japanese deposits.

Fancy Dark brown to Fancy black Marange diamonds

Black Diamonds from Marange (Zimbabwe): A Result of Natural Irradiation and Graphite Inclusions

Karen V. Smit, Elina Myagkaya, Stephanie Persaud, and Wuyi Wang, August 6, 2018

Characterizes a suite of 40 natural brown to black diamonds from this deposit so that they can be distinguished from suspected treated black diamonds.

Brazilian Diamonds: A Historical and Recent Perspective

Darcy P. Svisero, James E. Shigley, and Robert Weldon, May 8, 2017

Recounts the history, geology, and notable localities of diamond mining in Brazil, and outlines plans for future diamond production.

Husband and wife gaze happily at emerald rough found in a Colombian mine.

Article

Colombian Emerald Industry: Winds of Change

GIA, September 8, 2017

Andy Lucas, GIA’s education manager of field gemology, researches and documents the mine to market journey of gemstones. Lucas shares the changes he observed in Colombia’s major emerald mining and cutting areas in a presentation he made at the 2017 JCK Las Vegas show.

Mining Diamonds in the Canadian Arctic: The Diavik Mine

James E. Shigley, Russell Shor, Pedro Padua, Christopher M. Breeding, Steven B. Shirey, and Douglas Ashbury, August 3, 2016

Located near the Arctic Circle, Diavik is one of the world’s richest diamond deposits and a leader in sustainable mining.

Research Article Search Results

Types

Topics

Topics

Gemstones

You Might Also Like

Join Us atConverge

DiscoverA New Era in Retail Training

Explore GIA Laboratory Promotional Offers

Shop theGIA Store

Join Us at
Converge

Discover
A New Era in
Retail Training

Shop the
GIA Store