1.58ct Modified Square Montana Sapphire Low Profile Six Prong Split Shank Solitaire in Platinum


Dare to be different with this one-of-a-kind 1.58CT modified square radiant Montana sapphire! This medium blue gem sparkles with facets like a radiant cut and pointed corners like a princess cut. Natural silk gives it extra character, and best of all - it's completely untreated.

Create a timeless look with this split shank six prong solitaire ring. Crafted with recycled platinum, it features a smooth, rounded band that sits low to the hand. Want a bit of extra flair? Our signature Evergreen texture can be added by request. Stacks best with curved or contour bands - perfect if you don't want a gap between your ring and straight bands.

Center Stone Details:

  • Gemstone: Sapphire
  • Hardness: 9/10, great for everyday wear!
  • Origin: Montana, USA
  • Carat Weight: 1.58ct
  • Shape + Cut: Radiant Square
  • Dimensions: 5.2mm
  • Treatment: Untreated
  • Color Notes: Medium blue teal
  • Inclusions Notes: 

Setting Details: 

  • Platinum - Polished
  • Approx Band width: 1.8mm -1.9mm
  • Six Claw style prongs on the center stone
  • Low profile on hand
  • Size 6 - Resizable at no extra charge. Once resized, however, it is non-refundable. If you would like us to resize it, please select your desired ring size in the dropdown on this listing
  • Add our beloved Evergreen texture at no extra cost!


  • The ring is modeled on a size 6 finger


  • We ship within 1-3 business days if there are no resizes or changes.  
  • Please allow an additional 5-14 business days for resizing and/or appraisal. 

Only 1 piece in stock!


Rings will ship in an Anueva Jewelry ring box, with the exception of plain metal bands which will ship in a ring pouch. The package will be insured and require signature confirmation. Please be sure to use an address that will have someone available to sign during mail delivery times. If providing a business address, please include the business name.

International buyers, please message me for shipping rates prior to purchasing.


If you would like to have the ring appraised, there is a $150 appraisal fee that you can add to cart here. We will take the ring downtown to be appraised by a third party GIA gemologist appraiser and provide details for your insurance purposes.

Help fight climate change with this purchase! Trees are like the lungs of the planet...our "natural air purifiers." They breathe in carbon dioxide and breathe out oxygen. Additionally, they provide habitat for birds and other wildlife and play a vital role in our natural water cycle. Forests help regulate the water in the air through a process called transpiration. They absorb thousands of gallons of water into their roots. Excess water is then released through the leaves back into the air. For every purchase made, I donate one planted tree through Plant-It 2020. Small changes by individuals can make a difference in the fight against climate change. 

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