from our monthly newsletter Palagems Reflective Index
This is a massive 15.2-carat oval brilliant with a pleasing violet-ish blue hue. It's certified by the DSEF lab out of Idar-Oberstein in Germany as a natural, no-heat blue sapphire.
This 7.9-carat umbalite garnet has a striking color, unlike many we have seen come from the Umba valley in Tanzania. The melange of pyrope, almandine, and minor spessartite produces a striking mix of maroon, purple, and magenta in this unique gem.
This a duo has similar upbringings but very different features. Born of zinc and sulfur, these two minerals could make great ore for extracting zinc, but in this case they crystallized into fine specimens.