3.15-Carat Rich Peacock Blue Montana Sapphire (Heated)

3.15-Carat Rich Peacock Blue Montana Sapphire (Heated)



A beautiful rich peacock blue heated Montana sapphire in my custom “Testudo” brilliant oval design, 3.15 carats.

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This beautiful heated Montana sapphire is a gorgeous rich peacock blue, one of the finest shades of blue found in the Montana gems. This sapphire has been subject to traditional heat treatment in Montana to improve the color and clarity, but no other treatments have been applied. The treatment is permanent and stable.  The sapphire has excellent clarity. There may be tiny inclusions that you can find with a 10x loupe but that can’t be seen with the naked eye.

This sapphire is faceted in my custom “Testudo” brilliant oval design that I’ve created and optimized for sapphire; the result is a glittering beauty of a gemstone.  The gem weighs 3.15 carats and measures 9.4 x 7.1 x 5.9 mm.  It would make an amazing center stone for a unique and one-of-a-kind 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/