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Exploring Madagascar’s Sapphire Mines
Article
GIA Field Gemmology Team Explores Sapphire Mines at Ilakaka, Madagascar

Tour one of the world’s most active sapphire mining areas - the island of Madagascar - with GIA’s field gemmologist Vincent Pardieu.

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Article
On the Trail of Africa’s Hidden Gems with GIA’s Field Gemmologists

Visit gem mining areas in Madagascar, Kenya, Tanzania, Zambia and Mozambique with GIA’s field gemmologists.

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Article
Emeralds: Colombia’s Buried Treasure

Colombia is home to a rainbow of gems, but emeralds – and the tales of lore that surround them – are the country’s most well-known treasures.

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A pile of near-colorless HPHT synthetic melee
Article
Diamond Market Forecast: Declining Credit, Soft Prices and Lab-Grown Diamonds

Despite the generally strong year for jewellery retail, the diamond industry continues to face problems with credit, patchy demand and soft prices.

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Shoppers walk in a mall past a Chow Tai Fook jewelry store.
Article
Season’s Sales: US Up 4% to 5%, But China Continues to Lag

The US holiday season saw strong sales, but China continues to struggle. Plus: diamond market report and lab-grown diamond sales.

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A large pear shaped yellow diamond hangs from a black cord and lies against red material.
Article
US Holiday Season Opens Well, Despite Volatile Markets

The US holiday shopping season is looking positive, despite signs that an economic slowdown may be coming in 2019. Plus, more auction sales records.

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A large piece of rough, left, with a portion cut out of it, and six cut and polished diamonds produced from the cut out piece of rough.
Article
Chipping Away at 1,109 ct Lesedi La Rona

Graff reveals the first polished diamonds produced from the Lesedi La Rona, one of the largest pieces of rough ever mined. Plus, other market news.

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A miner in northern Tanzania examines rhodolite.
Gemstone Guidebook Project

A project coordinated by GIA and the NGO Pact provides a valuable educational tool to women miners in Tanzania.

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Rough sapphires from Chila, Ethiopia.
Sapphires from Northern Ethiopia

A new source of sapphires is found in the Tigray region of Ethiopia.

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Article
Pyrope Garnet and Montana Sapphires Highlight Winter 2015 G&G

G&G Brief presents an overview of the content of the Winter 2015 issue of Gems & Gemology.

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