Faceted Gemstones(314)

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Faceted Gemstones, Gemstones and Diamonds

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314 results | 11 pages

Finding the Perfect Gemstone
with Rio Gem Source
Rio Gem Source is your personalized service to help you find the perfect gemstone for your customers. Our in-house gemologists can source any gemstone you're looking for —and answer any questions along the way.

Gemstones

From artisan cuts and specialty stones (such as Lehrer TorusRing™ stones and moissanite) to classic faceted gemstones and cabochons, look no further than the Rio Gem Source. Place your order before 4:30 p.m. MT and we will ship the same day as long as we have it in stock.

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Rio Gem Source

Sourcing a specific precious gemstone?

Need help understanding the Mohs hardness scale or deciphering between natural and treated gems?

Talk to one of our Graduate Gemologists—we’re happy to help.



Shop Loose Gemstones, Cabochons & Cameos


AGTA: Add More Color to Your Life

Learn about the symbols set by the American Gem Trade Association (AGTA) used to disclose any enhancements that have been applied to gemstones. Use these symbols when you buy, display and sell stone-set jewelry.

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Traditional Birthstone Calendar

Birthstones remain as popular as ever and are a great way to customize jewelry! This chart lists the traditional birthstones and their corresponding months.

View Calendar
Image of 12 traditional simulated birthstones

“The Rio Gem Source team is made of friendly, able, dependable, helpful, professional experts. Shannon and Chris have always gone the extra mile, and then some, to help me find the perfect diamond for my clients. They always do an excellent job in helping me.”
—Hector, Customer since 2013

14K yellow gold ring set with an Ethiopian opal cabochon

Feature: Oval Ethiopian Opal Cabochon

Incorporate the sought-after play of color and vivid translucence of opal into your designs at an attractive price point with these newly available Ethiopian opal cabochons. Cut with a higher dome than typical opal cabochons, these stunning stones put the ethereal beauty of opal on full display.

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Mohs hardness scale

Mohs Hardness Scale

Developed in 1812 by German mineralogist Friedrich Mohs, the Mohs Hardness Scale compares the resistance of a mineral to being scratched by other minerals. This makes hardness a reliable diagnostic property when identifying gemstones.

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Shop All Gemstones

Lab-Created Ruby Round Faceted Stones
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Black Spinel Round Faceted Stones
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"Peridot" CZ Round Faceted Stones New
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This page does not necessarily reflect current pricing; please click on individual product for current pricing.
All prices are in U.S. Dollars.






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