3.51-Carat Rich Teal Blue Montana Sapphire (Heated)

3.51-Carat Rich Teal Blue Montana Sapphire (Heated)



A gorgeous rich teal blue heated Montana sapphire in the classic diamond round brilliant design, extremely large and fine for Montana at 3.51 carats.  A truly exceptional sapphire!

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This beautiful heated Montana sapphire is a gorgeous rich teal blue, one of the finest shades of blue found in the Montana gems. 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 excellent clarity, making it bright and scintillating in the hand. There is only one tiny inclusion in this gem, tucked near the edge, and it is impossible to see without a 10x loupe.

This sapphire is faceted in the classic diamond round brilliant design optimized for sapphire and cut to “hearts and arrows” precision. The gem weighs 3.51 carats and measures 8.9 mm x 5.9 mm; the perfect size for an impressive engagement ring.  Sapphires this large are very rare from Montana; each year we are able to cut only 2-3 stones of this size, color and clarity out of literally hundreds of kilos of sapphire that we mine.  This is an exceptional rarity!

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/