Take a virtual trip to see where gemstones are found all over the world.

California turquoise - Mojave Desert
Desert Prospecting: Discovering California Turquoise

Learn how one man discovered beautiful California turquoise gemstones by taking the time to appreciate Nature's beauty. Take his desert prospecting advice.

Old Mine Tales

Old Mine Tales that were submitted as letters to Faceter's Digest. They are a personal history of the author's experiences with the mines in North Carolina

Opals in the Australian Outback

Peter Brusaschi explains how he felt when he first discovered the opal town of Yowah in the outback opal fields of Australia.

Sharing the Fun and Folklore of Gemology

My goal is to share with each of you the fun and folklore or gemstones. Since this is my first article for IGS, my goal is to introduce you to the difference between a rock, mineral and a gemstone.

Crater of Diamonds State Park, AR - gem hunting in the US
Top Spots for Gem Hunting in the US

Visit one of the top gem hunting spots in the US. Go alone or with the family. A gemology-themed vacation can be fun, educational, and (maybe) profitable.

Where Can You Find Agate Stones Forming?

Agate stones typically form slowly in the cavities of ancient hardened lava flows. Learn where you can see this process occurring today.

An Introduction To Turkey's Gemstones

Turkey's gemstones include well-known species such as diaspore, chalcedony, and jade, as well as unusual specimens of lesser-known gems. Learn more here.

Reviews of The Tucson Gem and Mineral Show

Read multiple reviews of the renowned annual February Tucson Gem and Mineral Show, from 2002 to current shows, by both expert and novice gemologists.

Pricing Information For Star Opals From Spencer, Idaho

Some opals from Spencer, Idaho show asterism or the “star stone” effect. Learn how to price these beautiful but rare star opals.

A View of The Quartzsite Gem Shows

The Quartzsite gem shows attract gemologists and rock hounds from around the world. Learn what to expect and how to shop at these huge annual events.

Master Diamond Cutter Mike Botha Takes On Esperanza

The Esperanza is the most valuable diamond ever mined in the US. Learn the story behind the find and the unique triolette cut designed to showcase this gem.

Colorado gemstones - rhodochrosite pendant
A Visitor's Guide to Colorado Gemstones

Colorado has a lot to offer gemologists and rock hunters. Before you visit, learn about Colorado gemstones as well as notable gem shows, museums, and clubs.

first gem show - display
Five Tips for Your First Gem Show

New to the gem trade, or just a hobbyist? Don't be intimidated! Follow these tips for your first gem show to make the most out of the event.

denver gem show - gems on display
Denver Gem & Mineral Showcase 2017

With over 900 vendors and numerous geologic rarities, the 2017 Denver Gem & Mineral Showcase had plenty to see. Read about some highlights in our report!

montana sapphires - matching rings
Why We Love Montana Sapphires and Yogo Sapphires

With rich cornflower blue Yogo sapphires and fancy-colored gems in any color of the rainbow, Montana sapphires are a great choice for any jewelry piece. Learn more about what makes Montana sapphires and Yogo sapphires unique.

Coober Pedy - town sign
Opal Mining in Coober Pedy: History and Methods

The town of Coober Pedy, Australia produces more opal than anywhere else. Its culture has been thoroughly shaped by opal mining. Learn more about this colorful location and the methods used to hunt for precious opals.

ethiopian emeralds - 4.84ct Ethiopian Emerald Ring
Ethiopian Emeralds (Better than Colombian?)

Gem experts compare the bright, neon-green hues of Ethiopian emeralds to paraíba tourmalines and extra-fine Colombian emeralds. Learn what you need to know about this new find, including quality, pricing, gemology, and how these gems stack up against those from traditional sources.

"Rubyland" - Mogok, Myanmar
800 Years of Mogok: A Celebration in Tenuous Times

As Mogok, Myanmar prepares to celebrate its 800th anniversary, the inhabitants of this prolific gem producing region face an uncertain future. Learn about the domestic and international pressures that threaten their livelihoods and how this unique community may yet endure.