1.40-Carat Peacock Blue Montana Sapphire


A beautiful peacock blue unheated Montana sapphire in a classic diamond round brilliant design, 1.40 carats.

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This beautiful unheated Montana sapphire is a rich peacock blue color–a deep blue with a tint of green.  The color is reminiscent of the feathers of the peacock, hence the name.  It has a light amount of rutile silk visible in the image, but its not visible in the hand without a 10x loupe.  In the hand this is stunning gem, with rich color and beautiful brilliance.  It represents some of the finest blue color to be found in the Montana sapphires.

This sapphire is faceted in my modified version of the diamond round brilliant cut, optimized for sapphire and cut to “hearts and arrows” level of precision; the result is a glittering beauty of a gemstone.  The gem weighs 1.40 carats and measures 6.6 x 4.3 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/