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Short | 1 months ago

Emeralds in History

Rome’s Pliny the Elder described emerald in his Natural History, published in the first century AD: “…nothing greens greener” was his verdict. He described the use of emerald by early lapidaries, who “have no better method of restoring their eyes than by looking at the emerald, its soft, green color comforting and removing their weariness and lassitude.” Even today, the color green is known to relieve stress and eye strain.

The first known emerald mines were in Egypt, dating from at least 330 BC into the 1700s. Cleopatra was known to have a passion for emerald, and used it in her royal adornments.

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Indexed videos from GIA (Gemological Institute of America)

Emeralds in History

Short | 1 months ago

Rome’s Pliny the Elder described emerald in his Natural History, published in the first century AD: “…nothing greens greener” was his verdict. He described the use of emerald by early lapidaries, who “have no better method of restoring their eyes than by lo...

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Where do emeralds come from?

Short | 1 months ago

Notable emerald-producing regions include Colombia, Zambia and Brazil. As the gem of spring, emerald is the perfect choice as the birthstone for the month of May. It’s also the gem of the twentieth and thirty-fifth wedding anniversaries.

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About May's Birthstone: Emerald

Short | 1 months ago

Emerald, May’s birthstone, has enchanted civilizations for millennia. Discover the history, symbolism and unique beauty behind this legendary green gem. Is emerald your birthstone?

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Pigeon's Blood Rubies from Myanmar (Burma)

Short | 2 months ago

The Mogok Stone Tract has produced many of the world’s most prized rubies, sought-after for their vivid red "pigeon's blood" color and strong fluorescence. For centuries, Mogok rubies have been among the most coveted gemstones, admired by collectors, royalt...

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Where do rubies come from? Mogok Stone Tract Gemstone Origins

Short | 2 months ago

The Mogok Stone Tract in Myanmar (formerly Burma), is one of the most legendary gem-producing regions on Earth. Known for rubies, sapphires, peridot and more, this region continues to fascinate gem lovers and scientists alike. Do you have a ruby from Mogok?

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7,626-carat Brazilian topaz

Short | 2 months ago

This 7,626-carat Brazilian topaz is one of the biggest cut gems in GIA's museum collection! Brazil is one of the world’s most important sources of topaz and many of the finest blue, imperial and colorless gems come from Minas Gerais. This massive gemstone s...

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Tour the GIA School of Gemology and Jewelry Arts™ Carlsbad Campus

Short | 2 months ago

Welcome to GIA’s Robert Mouawad Campus in Carlsbad, where cutting-edge classrooms meet our world-famous lab and museum—all in sunny Southern California. Just minutes from the Pacific Ocean and about 30 minutes from San Diego, it’s the perfect place to learn...

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Rainbow Obsidian #gemstone

Short | 2 months ago

At first glance, rainbow obsidian looks like glossy black glass—but turn it in the light, and hidden bands of green, gold and purple appear. Formed from rapidly cooled volcanic lava, obsidian is a natural glass made mostly of silica (the same primary compon...

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Behind-the-Scenes of an Akoya Pearl Farm

Short | 3 months ago

From the sea to the classroom, GIA researcher Tao Hsu recently traveled to Japan to experience akoya pearl cultivation firsthand. In November 2025, she visited three large-scale pearl farms in Nagasaki—home to nearly half of Japan’s akoya pearl production—w...

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The Second Rarest Gem Material Ever Discovered!

Guide | 3 months ago

What happens when leading gemologists encounter a stone they don't recognize? Dr. Aaron Palke, Senior Manager of Colored Stone Research, shares the story of an unidentifiable mineral that led to the discovery of a new species. A dealer submitted this specim...

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143-Year-Old Jewelry Magazine | Antique Jewelry Magazine

Review | 3 months ago

A new addition to the GIA Library just rewrote history! In March 2026, the Richard T. Liddicoat Gemological Library and Research Center at GIA in Carlsbad acquired 400+ antique and vintage jewelry and watch journals, including a Jewelers’ Circular and Horol...

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Where is your gemstone from? Find out with help from GIA!

Short | 4 months ago

Earlier this year, GIA launched a redesigned colored stone report and expanded our gemstone origin services. Our geographic origin determination is now available for jade, opal, peridot and demantoid garnet—in addition to alexandrite, emerald, Paraíba tourm...

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