1.38-Carat Deep Violet Blue to Purple Montana Sapphire (Heated)

1.38-Carat Deep Violet Blue to Purple Montana Sapphire (Heated)



A deep blue violet to purple color-change heated Montana sapphire faceted in my custom “Testudo” brilliant oval design, 1.38 carats.

Out of stock


This unusual heated Montana sapphire is a deep violet blue to purple color that changes depending on the light. In daylight, the color is a rich deep purplish-blue, while under incandescent light, it changes to a deep purple. It is eye-clean; the inclusion visible in the photo is impossible to see in the hand without a 10x loupe.  

This sapphire is faceted in my custom “Testudo” brilliant oval design. The gem weighs 1.38 carats and measures 7.2 x 5.4 x 4.4 mm.  It would make a unique and eye-catching center stone for an 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/