1.06-Carat Robin's Egg Blue Montana Sapphire (Heated)

1.06-Carat Robin’s Egg Blue Montana Sapphire (Heated)



This lovely Robin’s egg blue heated Montana sapphire is cut in a custom radiant rectangle design called “Fourth of July” and weighs 1.06 carats.

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SKU: MS3507 Category: Tags: , , ,


This beautiful heated Montana sapphire is a lovely Robin’s egg blue, reminiscent of the eggs of the American Robin. 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. The inclusions have been factored into the price, making this a great value for the size and color.

This sapphire is faceted in our custom “Fourth of July” radiant rectangle design. The gem weighs 1.06 carats and measures 6.5 mm x 4.8 mm x 3.6 mm. It would make a gorgeous engagement ring.

Additional information



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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/