my gia

featured Research & News

Tony Duquette
Feature Article

GIA Museum Exhibit: Theatrical Jewelry

JCK visitors can preview pieces from legendary Hollywood designer Tony Duquette and Hutton Wilkinson.
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Ametrine
Field Report

From the Andes to the Pantanál: In Search of Ametrine

We bring you to the source of one of the world’s most unique gems: ametrine. In this gem, nature has combined two quartz varieties, purple amethyst and golden citrine. Ametrine is found only in this exotic Andean nation, a land as unique as the gem it produces.
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BaselWorld Fair
Industry Analysis

Price Increases Affect Gemstone Sales

Gem price increases and fewer Chinese buyers affect gem sales at the BaselWorld fair.
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Gem Encyclopedia
Feature Article

Discover the New Gem Encyclopedia

Explore gem history, buying guides, famous stones, videos and more for 21 popular gemstones.
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GIA at JCK Las Vegas
Feature Article

See Us at JCK Las Vegas Booth L99

Hear expert talks on gemology trends, see exquisite museum pieces and network with fellow alumni.
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Fancy Skull Cufflinks
ALUMNI PROFILE

Cufflinks: 227 Years of Family Tradition

Family history runs generations deep at Deakin & Francis. Today, brothers and GIA alumni own the business
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Learn & Connect

This Month's

Featured Gems

  • Diamond
    Diamond
    emerald
    Diamond

    Diamonds are among nature’s most precious and beautiful creations.

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  • Featured Gems Emerald
    Emerald
    emerald
    Emerald

    Emerald is the bluish green to green variety of beryl, a mineral species that includes aquamarine.

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  • Amethyst
    Amethyst
    emerald
    Amethyst

    The essence of purple, amethyst is beautiful enough for crown jewels, affordable enough for class rings.

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  • Sapphire
    Sapphire
    emerald
    Sapphire

    The name “sapphire” can also apply to any corundum that’s not ruby red, another corundum variety.

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  • Ruby
    Ruby
    emerald
    Ruby

    Ruby is the most valuable variety of the corundum mineral species, which also includes sapphire.

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