2.59-Carat Rich Teal Blue Montana Sapphire (Heated)

2.59-Carat Rich Teal Blue Montana Sapphire (Heated)



A beautiful rich teal blue heated Montana sapphire in my custom “Aurora” square cushion design, 2.59 carats.

In stock


This beautiful heated Montana sapphire is a gorgeous rich teal blue color–blue with a touch of green.  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 gem has incredibly high clarity, making it bright and scintillating in the hand.  There is one tiny crystal inclusion that is difficult to find without a 10x loupe–the gem is very clean.

This sapphire is faceted in my custom “Aurora” brilliant square cushion design that I’ve created and optimized for sapphire; the result is a glittering beauty of a gemstone.  The gem weighs 2.59 carats and measures 7.3 x 5.3 mm–large for a Montana sapphire.  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/