KFJ Unique Halo: Oval Brilliant AAA violet to blue color tanzanite at ~0.90ct is hand set by a KFJ family member in a unique halo setting with ~0.08cts of baguette-cut diamonds and ~0.20cts of H/SI round brilliant cut diamonds. The reflection of light at different angles from the baguette and round diamonds help to enhance the high grade of the center tanzanite.