United Diamond Buyers is a professional diamond trading company with our main office based out of Miami, Florida. We are a sister company to a reputable and recognized diamond wholesaler to the trade market. We have partner diamond offices nationwide ready to serve you!

We are a licensed an insured diamond company with great BBB, Jeweler’s Vigilance Committee, and have safe and insured transactions with Brinks and Jeweler’s Mutual. You’re covered!

Seeing and believing that everybody should get a fair market cash value for their precious gems, United Diamond Buyers was formed to help aid consumers along with the best possible offer.

Would you sell your Mercedes to a junk-yard? Of course not! So don’t even think about selling your diamond investment to a pawnshop. They aren’t diamond experts, they aren’t diamond dealers, in fact, they aren’t even in the business of buying and selling diamonds, but more in the business of ripping people off!

So, when selling your diamond or diamond jewelry, let the experts at United Diamond Buyers help you get the best cash for your diamond investment!
Generous payouts! Get cash now!

United Diamond Buyers is also an A rated BBB accredited business, with a great reputation for excellent service. When you are ready to sell your diamond or diamond jewelry, we have a team of professional gemologists ready to grade and appraise your diamond jewelry so we can give you a fast and fair cash offer.

And our cash offers are immediate and confidential!
Do you have a certified diamond? Get a cash quote right over the phone!

Call us at 1.800.771.8450

Although we have to screen all of our incoming diamonds, if you have a certified stone, we can easily give you a cash quote right over the phone so you know what you diamond is worth, putting money in your pocket!

Just use our simple form above and tell us more about your diamond or diamond jewelry. We will contact you within 24 hours about the next step.

Not sure if the diamond jewelry you are selling is something we here at United Diamond Buyers buy? Please see our “What We Buy?” page to view more information.