0.70-Carat Colorless Montana Sapphire

0.70-Carat Colorless Montana Sapphire



A beautiful colorless unheated sapphire from Montana, 0.70 carats.

In stock


This beautiful unheated sapphire is a rarity for Montana–its almost completely colorless, with just a touch of a gray tone.  The macro image shows some tiny inclusions but they are not visible without a 10x loupe–its an eye clean gemstone.

This sapphire is faceted in the classic diamond round brilliant design, cut to “hearts and arrows” precision.  It weighs 0.70 carats and measures 5.3 x 3.3 mm.  It would make an amazing center stone for a beautiful engagement ring!

Additional information


Gemstone Origin

AGTA Enhancement Code

Gem Carat Weight

Gemstone Shape

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/