Cool Blue Diamond

Why Buy Retail When You Can Buy Wholesale

  • Home
  • About
  • Gallery
    • New Arrivals
    • Bracelets
    • Engagement Rings
    • Engagement Sets
    • Fashion Jewelry
    • Mens Rings
    • Pendants
    • Three Stone Rings
    • Wedding Bands
  • Contact
  • Facebook
  • YouTube
  • LinkedIn

Why Buy Retail?

Most Jewelry Stores Don’t Import Their Own Diamonds. We Do.

Learn About Us

When You Can Buy Wholesale

We Offer The Absolute Guaranteed Lowest Pricing, Incomparable Personalized Service, And We Are Here To Take All Of The Fear And Mystery Out of the Diamond Purchase Experience.

Experience

Importing Our Own Diamonds And Selling Them To Jewelry Stores For Almost 75 Years.

Custom Designs

We Can Replicate And Create Any Design You Want, For A Fraction Of What You Will Pay At Any Retail Stores Best Price!
Start The Process

Diamonds.

Call Richard Mark To Schedule an Appointment – 612-670-3898

Contact Us

About Cool Blue Diamond

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!

Copyright © 2025 · Cool Blue Diamond, All Rights Reserved.· Minneapolis, Minnesota· Contact Us · 612-670-3898