1.67-Carat Light Yellow Montana Sapphire

1.67-Carat Light Yellow Montana Sapphire



A beautiful light yellow unheated Montana sapphire faceted in my custom Helena brilliant oval design, 1.67 carats.

In stock


This beautiful unheated Montana sapphire is a lovely light yellow color, a fairly uncommon color for the Montana gems.  The gem has outstanding clarity, with just one tiny inclusion only visible with a 10x loupe.  The high clarity makes this gem remarkably bright and scintillating in the hand.

This sapphire is faceted in my custom oval brilliant design I created just for Montana sapphire.  The design is called “Helena” in honor of the capital of Montana. The gem weighs 1.67 carats and measures 7.7 x 6.5 x 4.6 mm.  It would make a superb 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/