20K views · 553 reactions | Finally got a couple sapphires back, from our dig at the Blue Jewel Mine!  Check out this incredible color changing purple and blue sapphire. All natural color and proudly cut in the USA!  total weight is 1.4 carats. Check out Eric Sorenson to plan a trip to dig or to find the perfect all natural Montana sapphires. | That Camping Couple | Facebook

Color-change sapphires are rare gems. Their basic color typically ranges from blue to violet. Under incandescent light, they can appear violetish purple to reddish purple. This phenomenon is caused by trace element impurities in a gem’s atomic structure, which cause it to absorb certain wavelengths of light. Because the wavelength mix varies depending on the light source, the sapphire’s color changes when it’s viewed in different types of light. The strength of the color change is described by g