8.5
Showing 25–26 of 26 results
Natural Gemstone Jewelry & Loose Gemstones at Earth’s Treasury
Welcome to Earth’s Treasury! If you’re looking for beautiful precision-cut loose gemstones or custom-designed natural gemstone jewelry, you’ve come to the right place. Earth’s Treasury features one of the widest selections of ethically sourced colored gemstones available online. We work closely with professional artisans who craft beautiful jewelry using gemstones that come directly from the mine to the market. Sapphires, rubies, emeralds, tourmalines, tanzanite, aquamarine—we have it all!
At Earth’s Treasury, we love the process of working with clients to help make their custom natural gemstone jewelry vision come to life. Whether you prefer a classically styled piece or a truly unique custom design, we can make it happen. We will work with you through the design, prototyping, casting, and production processes to craft your dream piece of jewelry.
While our collections contain colored gemstones from all over the world, our true passion is for North American gemstones. We work with American miners to source stones such as the brilliant Montana sapphire, gorgeous Oregon sunstone and colorful tourmaline from California and Maine. There is a remarkable diversity of colored gemstones available right here in America, many of which are rarer and more valuable than diamonds!
If you have any questions about our collection, don’t hesitate to reach out to us. We’re here to help you through the process of finding the perfect natural gemstone jewelry or loose gemstones online.
0.84-Carat Medium Blue Montana Sapphire (Heated) 
0.48-Carat Orange Montana Sapphire 
0.89-Carat Rich Blue-Light Blue Particolored Montana Sapphire (Heated) 
1.58-Carat Violet Purple Ceylon Sapphire 
0.94-Carat Violet-Purple Umba Sapphire 
2.63-Carat Nasarawa Teal Aqua 
1.03-Carat Blue-Pale Blue Bicolored Montana Sapphire (Heated) 
0.86-Carat Sky Blue Montana Sapphire (Heated) 
0.62-Carat Pale Yellow Montana Sapphire 
1.05-Carat Deep Green-Yellow Particolored Australian Sapphire 
2.25-Carat Deep Forest Green Australian Sapphire 
0.72-Carat Pale Yellow Montana Sapphire 
1.07-Carat Medium Blue Montana Sapphire (Heated) 
1.51-Carat Rich Blue-Orange Particolored Montana Sapphire (Heated) 
1.07-Carat Blue-Aqua Bicolored Montana Sapphire (Heated) 
1.38-Carat Light Aqua Blue Montana Sapphire (Heated) 
0.82-Carat Colorless Montana Sapphire 
0.60-Carat Yellow Montana Sapphire 
1.10-Carat Near Colorless Montana Sapphire 
1.12-Carat Blue-Green Montana Sapphire (Heated) 
0.71-Carat Pink Montana Sapphire 
0.69-Carat Rich Teal Montana Sapphire (Heated) 
0.81-Carat Bright Pink Montana Sapphire 
Montana Sapphire Earrings- Teal, 6.0mm (Heated) 
1.64-Carat Royal Blue Montana Sapphire 
1.45-Carat Colorless-Yellow Particolored Montana Sapphire (Heated) 
0.92-Carat Rich Blue Montana Sapphire (Heated) 
1.27-Carat Light Blue Montana Sapphire (Heated) 
0.73-Carat Medium Blue Montana Sapphire 
0.91-Carat Teal Blue Montana Sapphire (Heated) 
1.03-Carat Blue-Aqua Bicolored Montana Sapphire (Heated) 
1.90-Carat Pale Gray Montana Sapphire 
1.18-Carat Medium Blue Montana Sapphire (Heated) 
1.37-Carat Medium Blue Montana Sapphire (Heated) 
0.93-Carat Medium Blue Montana Sapphire (Heated) 
1.91-Carat Mint Green Tourmaline 
0.82-Carat Pale Aqua Blue Montana Sapphire 
1.06-Carat Teal Blue Montana Sapphire 
0.73-Carat Peacock Blue Montana Sapphire (Heated) 
0.56-Carat Medium Blue Montana Sapphire 
2.07-Carat Yellow-Green Australian Sapphire 
Montana Sapphire Earrings- Medium Blue, 6.0mm (Heated)