1.15-Carat Blue-Green Montana Sapphire (Heated)

1.15-Carat Blue-Green Montana Sapphire (Heated)



A gorgeous blue-green Montana sapphire in our custom “Triptych” trillion design, 1.15 carats.

Out of stock


This lovely heated Montana sapphire is a beautiful blue-green. 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 sapphire has slight inclusions that are just barely visible to the naked eye. There is a slight haze to the gem from undissolved rutile silk, but it gives the gem a soft glow that is quite pleasing and enhances the color in low light. The inclusions and haze have been factored into the price, making this a great value for the size and color.

This sapphire is faceted in our custom “Triptych” trillion design; the result is a glittering beauty of a gemstone.  It weighs 1.15 carats and measures 6.3 mm x 4.1 mm.  It would make an amazing center stone for a 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/