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.
In the early 2000s, fine rubellites with unique color were mined simultaneously with the various other colors from the Shalawa deposit in Mozambique.
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.
An 8.20-carat cabochon cat's eye measuring 12.8 x 12.5 mm and a 4.80-carat kite shape measuring 14.7 x 10.4 mm (Photo: Mia Dixon)
The 6.40-carat yellow sapphire from Sri Lanka rests next to a mountain lily taken from the hills of Pala International's Mountain Lily Mine. (Photo: Mia Dixon)
From back left, 1.56-ct trillion, 2.57-ct round, 1.72-ct cushion, 0.76-ct pear shape, and in front a 1.63-ct round. (Photo: Mia Dixon)
Highlights from the Joe Kast Collection. This collection exhibits a full spectrum of colors from the corundum family and a strong selection of emeralds as well. (Photo: Jason Stephenson)
Vibrant pinkish-red ruby from Burma with GRS cert. This corundum from Burma lies somewhere between ruby and pink sapphire. (Photo: Mia Dixon)
This impressive pair weighs in at 16.52 carats total weight and are perfectly matched with ideal-cut cushion faceting. (Photo: Mia Dixon)
This is a wonderful vintage imperial topaz showing a perfect marriage of red and orange in a clean, large emerald cut gemstone.