1.59-Carat Bright Orange-Gold-Blue Particolored Montana Sapphire (Heated)

1.59-Carat Bright Orange-Gold-Blue Particolored Montana Sapphire (Heated)



An unusual particolored orange-gold-blue heated Montana sapphire in my custom “Helena” brilliant oval design, 1.59 carats.

In stock


This beautiful heated Montana sapphire is an uncommon bright orange with flashes of gold and blue, like a Montana sunset. These multicolored sapphires are referred to as “particolored” in the gem trade; the effect is quite beautiful. The color was developed by heating the gem in Montana, but no other treatments were made to the gem.  The treatment is permanent and stable and not only develops the color, but also improves the clarity. The sapphire has good clarity, but does a small inclusion tucked off near the edge that is only visible with a 10x loupe; it is an eye-clean gemstone.

This sapphire is faceted in my custom “Helena” brilliant oval design that has been optimized for sapphire.  The gem weighs 1.59 carats and measures 7.3 x 6.2 x 4.6 mm.  It would make a unique and eye-catching center stone for a 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/