0.85-Carat Sky Blue Montana Sapphire (Heated)

0.85-Carat Sky Blue Montana Sapphire (Heated)


A lovely sky blue heated Montana sapphire faceted in my custom “Testudo” brilliant oval design, 0.85 carats.

Out of stock

SKU: MS1907 Categories: , , Tags: , , ,


This gorgeous heated Montana sapphire is a lovely sky blue color. The sapphire has a few tiny crystal inclusions that are not visible without a 10x loupe; it’s an eye-clean gemstone.

This sapphire is faceted in my custom “Testudo” brilliant oval design. The gem weighs 0.85 carats and measures 6.2 x 4.6 x 3.7 mm.  It would make a unique and eye-catching center stone for an engagement ring.

Additional information



Gemstone Origin:

AGTA Enhancement Code:

Gem Carat Weight:

Gemstone Shape:

Gemstone Design:

Gemstone Artist:

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/