Article Search Results

Show Filters
Showing 43 results for "*"
Colombian independent miners
Colombian Emerald Industry: Winds of Change

A firsthand look at Colombia’s emerald mines and the cutting and trading industry in Bogotá.

Read More

Brazilian Diamonds: A Historical and Recent Perspective

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

Read More

Jaipur, India: The Global Gem and Jewelry Power of the Pink City

Examines Jaipur’s role as a colored stone cutting and jewelry manufacturing center, with profiles of 17 companies and their factory, trading, and retail operations.

Read More

Ruby-bearing gravel bed in Mugloto.
Update on Gemstone Mining in Northern Mozambique

Recounts an expedition to Mozambique’s important deposits of ruby, spinel, and tourmaline, which have yet to be fully explored.

Read More

El Pulpito, the landmark overlooking the Chivor mine
In Rainier’s Footsteps: Journey to the Chivor Emerald Mine

Chronicles the famed emerald source through the adventures of Peter W. Rainier, who directed the mine from 1926 to 1931 and restored its former glory.

Read More

GIA team at Montepuez ruby deposit
Mozambique: A Ruby Discovery for the 21st Century

Explores the geology, production, and yield of the world’s most commercially important ruby deposit.

Read More

Rough Diamond Auctions: Sweeping Changes In Pricing and Distribution

Examines the growing percentage of rough diamonds being sold through auctions, a shift that has caused price volatility while opening up supply to more manufacturers and dealers.

Read More

Argyle pink diamonds
Exceptional Pink to Red Diamonds: A Celebration of the 30th Argyle Diamond Tender

Describes the extremely rare polished pink diamonds from Australia’s Argyle mine that have been sold for 30 years through invitation-only tenders.

Read More

Blue Moon, rough and cut
Study of the Blue Moon Diamond

Presents spectroscopic and phosphorescence data of the Blue Moon, a 12.03 ct Fancy Vivid blue diamond discovered at the historic Cullinan mine in early 2014.

Read More

Sri Lanka: Expedition to the Island of Jewels
Sri Lanka: Expedition to the Island of Jewels

Offers a firsthand look at Sri Lanka’s mining, cutting, jewelry manufacturing, and retail sectors, where tradition and innovation converge.

Read More