3.76-Carat Blue-Green Montana Sapphire


A beautiful blue-green unheated Montana sapphire in my custom “Topangle” trillion design, 3.76 carats.

In stock


This beautiful unheated Montana sapphire is gorgeous blue-green–a classic Montana sapphire color.  It shows flashes of lighter yellow-green and blue on the overall blue-green body color, making for a unique effect in the hand.  This gem very good clarity; there is one tiny internal feather not easily visible without a loupe, and a very light amount of natural rutile silk–proof positive of its unheated status.

This sapphire is faceted in custom “Topangle” trillion design; the resulting gem is bright and beautiful in the hand.  It is quite large for a Montana sapphire at 3.76 carats and measures 9.3 x 9.3 x 6.2 mm.  It would make an amazing center stone for a unique and one-of-a-kind engagement ring or pendant.

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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/