Case Files of Jeweler Richard (Manga) Vol. 6 (manga)

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.