0.61-Carat Sky Blue Montana Sapphire

0.61-Carat Sky Blue Montana Sapphire


A lovely sky blue unheated Montana sapphire, 0.61 carats.

In stock


This lovely unheated Montana sapphire is gorgeous sky blue color, like the “big skies” of Montana. The gem has just a slight amount of natural rutile silk but it isn’t visible without a 10x loupe–in the hand this is a bright and scintillating gemstone.

This sapphire is faceted in a modified version of the classic diamond round brilliant design that is optimized for sapphire and cut to “hearts and arrows” precision; the result is a glittering beauty of a gemstone. The gem weighs 0.61 carats and measures 5.0 x 3.3 mm; the perfect size for an engagement ring.

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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/