“Richard made the entire process of buying an engagement ring stress-free. His pricing was significantly lower than any retail store I visited, and the quality was exceptional.”
Wholesale DiamondsMinneapolis
Why Buy Retail When You Can Buy Wholesale
Buy directly from the importer. 75+ years of expertise, guaranteed lowest pricing, and a personalized experience you won't find at any retail store.
Lowest price, guaranteed. Zero pressure. Richard picks up the phone himself.
So — why wouldn't you call?


75+
Years of Experience
3
Generations of Expertise
200+
Midwest Stores Supplied
Our Difference
The Cool Blue Diamond Difference
Why thousands of customers trust us with their most important purchases.
Absolute Lowest Pricing
Most jewelers don't import their own diamonds — we do. Buy directly from the importer at genuine wholesale cost, guaranteed.
No-Pressure Experience
Personalized, one-on-one consultations with complete transparency. We take the fear and mystery out of buying diamonds.
Custom Design Capability
Replicate or create any design you can imagine for a fraction of the retail price. Your vision, our expertise.
Selected Work
Pieces we've crafted.
A glimpse of what's possible. Every diamond shown was sourced and set by Richard.

Canary Cushion · Three-Stone
Half-moon side diamonds in yellow gold

Pear Cut · Rose Gold Sweep
Custom-designed asymmetric setting

Heart & Blue Drop Earrings
Two-tone color in yellow gold
Looking for something specific? Richard can source or design it.
Begin a ConversationCustom Design
Have a vision? We'll make it a reality.
Maybe you saw your dream ring on someone's hand and couldn't stop thinking about it. Maybe you've been saving a photo in your phone for years. Maybe it's just a feeling — something timeless, something yours.
Bring us anything: a photo, a sketch, a napkin drawing, or just words. Richard Mark will translate your idea into a one-of-a-kind piece at a price no retail jeweler can touch.
- Custom replicas of any design you've seen
- Fully original pieces built from your imagination
- Engagement rings, pendants, earrings, and more
- Wholesale diamonds and settings — no retail markup
Lowest price, guaranteed. Zero pressure. Richard picks up the phone himself.
So — why wouldn't you call?
Testimonials
What Our Customers Say
Real experiences from people who made their most important purchase with us.
“I was nervous about buying a diamond, but Richard walked me through every detail with complete transparency. No pressure, no gimmicks — just honest expertise and an incredible price.”
“We had a custom wedding band designed through Cool Blue Diamond and it turned out even better than we imagined. The savings compared to retail were unbelievable.”
Talk to Richard, not a salesperson.
Call directly for a no-pressure consultation, or send a note and Richard will personally respond within 24 hours.