Sphalarite, Santander, Spain, 11.65 ct., 13.30 mm, This stone has great dispersion, color, size and cutting. The color of the stone is a mix of rich gold, orange and red hues. There are very very slight inclusions, but honestly, it is very hard to obtain totally eye clean stones of this material, especially in a stone this size ! The cut on the stone is called a "Quantum Concave Round Brilliant" cut and it just bounces light all over when this stone is rotated in the light.
Very rare eye clean Taaffeite weighing from Sri Lanka. Taaffeite is one of the rarest and most desirable of collector's gemstones. Only a very few stones have been found and most of them originally misidentified as spinel.