Diamonds for the Dead — Alan Orloff

When Josh Handleman returns to his boyhood home to sit shiva for his estranged father, he gets the shock of his life: his frugal dad was a diamond collector worth millions. Now the gems are missing and Josh begins to suspect his father's death might have been murder, not an accident.

Hounded by grief and remorse, Josh resolves to find his dad's diamond stash. His emotion-laden treasure hunt throws him into the middle of a feud between two stubborn old Russian Jews -- and puts Josh squarely in the sights of his father's killer.