0.43-Carat Medium Sky Blue Montana Sapphire

0.43-Carat Medium Sky Blue Montana Sapphire



A beautiful little medium sky blue unheated Montana sapphire in my “Bella” custom square cushion design, 0.43 carats.

Out of stock


This gorgeous little unheated Montana sapphire is a classic Montana color–a beautiful medium sky blue color.  The sapphire has good clarity, and while the macro image shows spangle of tiny rutile crystals, they are only barely visible with a 10x loupe.  Apart from that the high clarity makes this a very bright and scintillating gem in the hand.

This sapphire is faceted in my custom “Bella” brilliant square cushion design that I’ve created and optimized for sapphire; the result is a glittering beauty of a gemstone.  The gem weighs 0.43 carats and measures 4.0 x 2.9 mm.  It would make an amazing center stone for a unique and one-of-a-kind engagement ring.

Additional information



AGTA Enhancement Code

Gemstone Origin

Gemstone Shape

Gem Carat Weight

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/