1.05-Carat Steely Teal Blue Montana Sapphire (Heated)
1.05-Carat Steely Teal Blue Montana Sapphire (Heated)
1.05-Carat Steely Teal Blue Montana Sapphire (Heated)

1.05-Carat Steely Teal Blue Montana Sapphire (Heated)



A beautiful teal blue to purple color-change heated Montana sapphire in a classic diamond round brilliant design, 1.05 carats.

Out of stock


This beautiful heated Montana sapphire is a beautiful teal blue color, while under incandescent light, it changes to a subtle mix of steely blue and lavender-purple.  The color was developed by heating the gem in Montana, but no other treatments were made to the gem.  The treatment is permanent and stable and not only develops the color, but also improves the clarity.  This gem has excellent clarity, appearing internally flawless with a 10x loupe.  Its very brilliant in the hand!

This sapphire is faceted in my modified version of the classic diamond round brilliant cut, optimized for sapphire and cut to “hearts and arrows” precision.  The gem weighs 1.05 carats and measures 5.9 x 3.9 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/