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.
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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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.
“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
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.
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.