1.19-Carat Deep Blue-Violet to Purple Color-Change Umba Sapphire


A beautiful deep blue-violet to purple color-change sapphire from Umba, Tanzania, 1.19 carats.

In stock


This lovely unheated sapphire comes from Umba, Tanzania.  This sapphire is a color-change sapphire: Under fluorescent light and in daylight its a deep blue-violet color, while under incandescent light it changes to a deep purple color.  While the macro image shows some crystal inclusions, these are not visible without a loupe; its an eye clean gemstone.  There is some light rutile silk that makes the gem a bit “sleepy” and it has been priced accordingly. The gem is faceted in the classic round brilliant design; it weighs 1.19 carats and measures 6.3 x 4.0 mm.

Additional information


, , ,

Gemstone Origin:

Gemstone Shape:

AGTA Enhancement Code:

Gem Carat Weight:

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/