0.99-Carat Aqua Blue Montana Sapphire

0.99-Carat Aqua Blue Montana Sapphire



A beautiful aqua blue unheated Montana sapphire faceted in my custom Helena brilliant oval design, 0.99 carats.

In stock


This beautiful Montana sapphire is a gorgeous bright aqua blue color–reminiscent of the color of a fine gem aquamarine.  The gem has outstanding natural clarity, with just a few tiny needles of natural rutile, just barely visible through a 10x loupe.  The high clarity makes this gem very bright and scintillating in the hand.

This sapphire is faceted in my custom oval brilliant design I created just for Montana sapphire.  The design is called “Helena” in honor of the capital of Montana, located near the sapphire mines on the Missouri River in Montana. The gem weighs 0.99 carats and measures 6.3 x 5.3 x 3.9 mm.

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Product Enquiry

Do your gems come with certificates?

We're often asked about this, and yes, we do include our own certificate of origin and authenticity.  You can learn more here: https://www.earthstreasury.com/what-about-a-certificate/

Can I have a custom piece of jewelry made?

We LOVE making custom jewelry for our clients!  You can learn more about how the process works here: https://www.earthstreasury.com/the-custom-jewelry-process/

What is your return policy?

We have a one-week review and return policy that starts the date you receive your gem.  We want you to be 100% sure you have the right gem.  Learn more here: https://www.earthstreasury.com/risk-free-review-and-return-policy/