9.36-Carat Midnight Blue Australian Sapphire


A beautiful deep midnight blue unheated Australian sapphire faceted in a classic emerald cut, 9.36 carats.

In stock


Australia has been known for its deposits of sapphires for over 100 years.  Most of the Australian sapphires are dark blue although there are also lighter blues, yellows and greens as well as some rare fancy colors.  The Anakie gemfields have produced immense quantities of sapphires, and they’re also known for occasionally producing very large sapphires.  This is one of those large ones–it came from a piece of rough that was over 50 carats.  Unfortunately several cracks meant that I had to cut it into three pieces–but a single large gem would have been too dark anyway.

This is the largest of the gems I faceted from this piece of rough, and while its still a very dark blue, it does show beautiful flashes of deep blue in daylight and fluorescent light. The gem is nearly flawless with the exception of a small feather near one edge that is not easily visible. It weighs 9.36 carats and measures 13.8 x 8.0 x 7.5 mm.

Additional information



Gemstone Origin:

AGTA Enhancement Code:

Gem Carat Weight:

Gem Clarity:

Gemstone Shape:

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/