0.7 carat Montana Sapphire Blue-Green (Heated)

There are many things Montana is known for, big blue skies and beautiful landscapes, but on top of that: Blue Montana Sapphires. There's a special blue that is common in the 'big sky country' state, and this particular gem is made all the more special by holding a slight green tint to its outer ring.


I cut this timeless stone in a classic Round Brilliant with excellent light return.


There are some small inclusions within the stone, but it is eye clean face-up. It has been heated to bring out the richness of its color.


We purchased the rough stone directly from the local Montana miner. He ensures his employees use environmentally conscious practices with minimal impact to Montana's rugged beauty. The Sapphires are dug from alluvial gravel deposits along the riverbeds, and a lot of effort is put in to restore the land to its natural state when finished.


Sapphire has been popular throughout history, and that trend doesn't seem to be changing. Sapphire is a mineral called corundum, and it doesn't only come in the well-known royal blue. Corundum can be an array of colours and shades, including white, and red corundum is Ruby. Sapphires and Rubies have a hardness of 9, making it the hardest coloured stone after diamond, and is well suited for daily wear.

0.7 carat Montana Sapphire Blue-Green (Heated)

SKU: 1.012.0007
  • Size: 5.7mm
    Weight: 0.7ct
    Design: Round Brilliant
    Treatment: Heat Treated Only
    Cut By: Bryan Wiebe