4.90-Carat Rich Teal Blue Montana Sapphire (Heated)

4.90-Carat Rich Teal Blue Montana Sapphire (Heated)



A beautiful rich teal blue heated Montana sapphire in our “Aurora” custom square cushion design, very large for Montana at 4.90 carats.

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SKU: PM1267 Categories: , , Tags: , ,


This remarkable heated Montana sapphire is a gorgeous rich teal blue color, a gorgeous combination of blue and green, and one of the signature colors of the Montana gems. This gem has very small inclusions that are quite difficult to see with the naked eye from a normal viewing distance.  Very few sapphires are mined each year on Montana that are large to facet a gem of this size.  The combination of size, clarity and color make this gem a real rarity!

This sapphire is faceted in our custom “Aurora” brilliant square cushion design; created and optimized for sapphire and cut to high precision.  The gem weighs 4.90 carats and measures 8.8 x 6.8 mm.  It would make an amazing center stone for a unique and one-of-a-kind engagement ring.

Additional information

Weight 1 oz



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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/