Realize the true value of your diamond jewelry

Get a Cash Offer Let's Get Started! How it works?

Discover the best way to sell your diamond jewelry online

All from the comfort of your home

Receive a guaranteed cash offer

Tell us about your diamond jewelry and we will extend a guaranteed cash offer range.

Send us your item, it's free!

We'll send you a free US shipping kit; simply drop this package at your nearest FedEx location or call for a pickup. Easy!

Get paid the same day

We will issue your payment immediately after we receive and inspect your diamond jewelry.


Work with people you can trust

We've teamed up with Blue Nile, the most trusted and largest global marketplace for diamonds, to provide you a clear straightforward offer for your diamond jewelry. We determine the true retail value of your diamond based on Blue Nile's live diamond prices, and our detailed offer will show you exactly how we got to that price.

We are 100% transparent

Sit back and let us do the legwork

Our simple process allows you to sell your diamond jewelry from the comfort of your home with the greatest amount of transparency offered. You can avoid all of the hassles of navigating the complicated, opaque, and often unpleasant process of selling your diamond jewelry to pawn stores or jewelers.

Ready to sell your diamond?

Get a Cash Offer!
Fast payment awaits

More $$$ for you

You get a guaranteed cash offer range, sight unseen. No estimates, no auctions, no consignment.

Quick payment

You will be paid by check or wire within a few hours of the physical inspection of your diamond.

Free shipping, fully insured

U.S. overnight shipping of your diamond jewelry is fully insured, and FREE!

Thousands already trusted Mondiamo

Join the thousands of happy sellers who have trusted us with their diamond jewelry.

Ready to sell your diamond?

Let's Get Started!

Our best in class service providers