3.06-Carat Peacock Blue Montana Sapphire (Heated)

3.06-Carat Peacock Blue Montana Sapphire (Heated)



A gorgeous rich peacock blue heated Montana sapphire in our custom “Serendipity” brilliant oval design, 3.06 carats.

In stock


This beautiful heated Montana sapphire is a gorgeous rich blue with a hint of green, reminiscent of the feathers of the peacock. 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. The sapphire has some minor inclusions that are visible to the naked eye, but they are not objectionable and are much less noticeable in person than the macro photo here would imply.  The inclusions have been factored into the price, making this gem a great value for the size and color.  Sapphires over three carats from Montana are quite rare, especially in such a rich blue color.

This sapphire is faceted in our custom “Serendipity” brilliant oval design, created and optimized for sapphire; the result is a glittering beauty of a gemstone. The gem weighs 3.06 carats and measures 9.4 mm x 7.6 mm x 5.7 mm; the perfect size for an engagement ring.

Additional information

Weight 1 oz
Dimensions 3 × 2 × 1 in

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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/