American gemstones

A polished teal and blue-green cabochon of authentic Mona Lisa Turquoise.

Mona Lisa Turquoise: Arkansas’s Hidden Gem

Introduction to Mona Lisa Turquoise Most people think of Arizona and Nevada when they hear the word turquoise. However, a little-known mine tucked in the Ouachita Mountains of western Arkansas produces some of the most interesting specimens in the country. Mona Lisa Turquoise originates from Polk County and offers buyers a genuine American gem with a fascinating history. […]

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A high-quality faceted red and green Oregon sunstone showing a strong copper schiller effect.

Oregon Sunstone Guide: Tips for Savvy Buyers

Introduction to the Oregon Sunstone Guide Oregon sunstones represent some of the most unique gemstones you can find anywhere in the world today. These natural, copper-bearing stones come exclusively from the high desert of southeastern Oregon. Remarkably, miners pull them straight from the earth without any heat treatment or artificial coloring. As a result, every stone

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Gem Mountain Sapphire Mine Montana gravel washing station.

Gem Mountain Sapphire Mine: Montana Sapphire Hunting

Summary Gem Mountain in Montana lets you wash real mine gravel and discover your own sapphires. You visit either the seasonal mine or the year-round Philipsburg store, both run by the Cooney family. Next, you wash, spot, and sort stones with staff support. Then you turn your finds into jewelry through on-site grading, heat treating,

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