This beautifully illustrated mystery series is based on the highly acclaimed light novels that also inspired a popular anime! When Seigi Nakata rescued a handsome young jewelry appraiser from a group of drunken assailants, he got more than he bargained for! The appraiser is Richard Ranasinghe de Vulpian, a brilliant and mysterious British jewelry expert. Seigi hires him to appraise a family heirloom...and that is just the beginning. Together, they unlock the secret messages hidden in the hearts of precious stones-and those who possess them.