Amazing 1.59ct rainbow spark untreated Sphene

This untreated sphene features a light shift in color, adding a light yellow tint in ordinary lighting with an added orange tint from its rainbow spark, creating an easy to observe bi-color palette. The pictures make the colors look flat, but in hand this gem is alive with light and color, displaying continuous pops of flashing that is filled with vibrant reds, yellows, and greens. It measures 5.8mm x 5.5mm x 5.4mm. Sourced from Russia.