March 2024 Birthstone

Aquamarine: The Gem of Calm Seas and Clear Minds

March Birthstone

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AJP HPH

AJP®, Now Offered In Person

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Loose Display Tray

Limited-Time Offer:
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HPH Spring Scholarship

Scholarships for Gemology & Jewelry Arts Programs

Apply March 1 – 31

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WN25 GG Issue Cover

Montana Sapphire from French Bar Sill, Chinese Emerald from Shaanxi, and Arkansas Turquoise

New Gems & Gemology Issue

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featured

Research & News

Nature’s Diamond Sculptures
Research News

G&G In a Flash: Nature’s Diamond Sculptures

A diamond’s journey towards the Earth’s surface can result in remarkably familiar shapes.
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Gemstone Phenomena 216
Research News

G&G in a Flash: Guide to Phenomenal Gems

Discover the science behind some of the most popular phenomenal gemstones.
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Three loose white freshwater pearls above three strands of freshwater and akoya cultured pearls of varying sizes
Retailer Resource

Freshwater Akoyas -
A Trending Misnomer for Certain Freshwater Pearls

Small, bead-nucleated freshwater pearls marketed as “akoyas” could cause confusion and mislead consumers.
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Tahitian Pearls
Retailer Resource

How GIA Analyzes Pearls from Start to Finish

Easy, step-by-step guide to how GIA analyzes pearls in its laboratory.
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Starry Night
Retailer Resource

How GIA Grades Colored Stones from Start to Finish

Easy, step-by-step guide to how GIA analyzes colored gemstones in its laboratory.
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Many loose laboratory-grown diamonds glowing under short-wave uv light
Retailer Resource

Testing Diamonds and Gems using UV Light

Quick how-to guide for retailers to test gemstone fluorescence and help identify stones in their own stores.
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Learn & Connect

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Engagement Rings

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Gems & Gemology
This Month's

Featured Gems

Featured Gem Peridot
Peridot

Found in lava, meteorites, and deep in the earth’s mantle, yellow-green peridot is the extreme gem.
Fancy Color Diamond
Fancy Color Diamond

Dazzling brilliance. Captivating color. These are the planet’s most valued gems.
Diamond
Diamond

Diamonds are among nature’s most precious and beautiful creations.
Emerald Bluish Green Stone
Emerald

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

Citrine is the transparent, pale yellow to brownish orange variety of quartz.

View the Gem Encyclopedia