1.61-Carat Sky Blue Montana Sapphire (Heated)

1.61-Carat Sky Blue Montana Sapphire (Heated)



A beautiful sky blue heated Montana sapphire in the classic diamond round brilliant design, 1.61 carats.

Out of stock


This beautiful heated Montana sapphire is a gorgeous sky blue, bringing to mind the Big Skies of Montana. The color was developed by heating the gem in Montana, but no other treatments were made to the gem. This sapphire has slight inclusions that are just barely visible to the naked eye. The inclusions have been factored into the price, making this a great value for the size and color.

This sapphire is faceted in a modified version of the classic diamond round brilliant design that is optimized for sapphire and cut to “hearts and arrows” precision; the result is a glittering beauty of a gemstone. The gem weighs 1.61 carats and measures 7.1 x 4.6 mm; the perfect size for an engagement ring.

Additional information




AGTA Enhancement Code

Gemstone Origin

Gemstone Shape

Gem Carat Weight

Length (mm)

Width (mm)

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/