To schedule your personal diamond consultation with Cool Blue Diamond,
please call 612-670-3898 or email crmarkmail@yahoo.com
WE WILL NOT BE UNDERSOLD. EVER.
CoolBlue Diamond is a new division of the Charles A. Mark Co., a wholesale diamond company that has supplied diamonds to some of the finest jewelry stores across the Midwest. The Charles A. Mark Co. has been importing and distributing diamonds for over 75 years, spanning over 3 generations!