3.01cts Unheated Tanzania Cobalt Spinel Heart Shape
Type: Cobalt SpinelShape: Heart
Carat Weight: 3.01
Color: Cornflower blue
Clarity: Clean
Origin: Tanzania
Cut: Multifacet
Saturation: Intense
Treatment: No Heat (NH)
Dimensions: 9.08 x 9.89 x 4.70mm
SKU: BK37
Cobalt Spinels are considered the most rare and precious variety of Spinels due to the presence of the chemical element cobalt. This gemstone comes in striking vivid to neon blue color saturations. The most iconic cobalt spinels come from Vietnam and Tanzania.



