Diamond Ring

We help you maximize the value of your diamond when you’re ready to sell

Get an Offer

Sell your diamond jewelry in 4-easy steps

  • Tell us about your diamond icon
    Step 1
    Tell us about your item

    Sell diamonds online easily and quickly. To start, you will be asked to provide us information about your diamond and setting (takes 2 minutes to complete).

  • Get Guaranteed Offer Range icon
    Step 2
    Get a guaranteed offer range

    Based on the info you provided, we’ll email you a price range we commit to paying you before we even see the diamond you’re selling (takes 1-2 business days).

  • Send Your Diamond Ring icon
    Step 3
    Send us your item for final evaluation

    Sell your diamond safely at no additional cost. Shipping is free, trackable and fully insured. We will even overnight to you all the packing materials.

  • Paid For Your Diamond icon
    Step 4
    Get paid same day

    If you accept our Final Cash Offer and sell your diamond ring or other jewelry, we’ll issue you an immediate payment. Alternatively, we will ship your item back to you, free of charge, no questions asked.

Flying Bird


See What Our Customers Have to Say About Selling Their Diamond Jewelry

We believe that you should feel good when selling a diamond ring or other piece of jewelry. Whatever the motivation behind your decision to sell diamonds, Mondiamo can be your trusted guide throughout the process to ensure you’re making educated decisions and maximizing the value of your jewelry. It’s no wonder so many of our customers leave us positive reviews and comments about their diamond selling experience. Check out what they have to say below and discover more about how to sell a diamond ring with us.

  • Christina
    Miami, FL
  • Jean P
    New City, NY
  • Violetta L
    Newington, CT
  • Valentina C
    Miami, FL
  • Ben D
    Cambridge, Ontario Canada
  • Shannon B
    Suamico, WI
  • Kate S
    Noblesville, IN
  • Jeremy P
    Columbus, OH

Mondiamo was a breeze to work with...their communication was top notch and the process could not have been any smoother. I highly recommend this company!

— Michael E.

I had limited information about my jewelry and they were still able to work with me. I also appreciated the quick turnaround in looking at my jewelry, providing an offer, and providing payment upon acceptance.

— Katie

The process was very easy, response from Mondiamo was timely, I felt very confident in their service. Everything went as promised from estimate range to check arrival.

— Kathy A.

I truly enjoyed every stop of me selling my diamond ring! They make it completely effortless on your part!... I would highly recommend using Mondiamo.

— Loreen O.

I really appreciate how simple, fast and fair the whole process was. I highly recommend Mondiamo and I can’t say enough about the customer service and how transparent they are.

— Brian S.

I was skeptical at first, but Mondiamo exceeded my expectations at every turn. From the offer process, to the patient customer service, to the website— Mondiamo is the way to go.

— Mathew K.

Not sure about something?

Check out our FAQs or call, text or email us.

We are here to help!

Why Sell your Diamond Jewelry to Mondiamo?

  • Experts in the field

    Recommended by Blue Nile, the largest online retailer of certified diamonds and fine jewelry in the world, our team has over 100-years of combined industry experience leveraging a global network to offer you the best value when you’re ready to sell your diamond engagement ring, diamond jewelry and loose diamonds.

  • Risk free

    Our process is transparent, safe, secure and comes at no cost to you. We guide you through how to sell a diamond ring or other piece so you’re making educated decisions the entire way through.

  • Quick and easy

    Realize the value of your diamond jewelry from the comfort of your home when you sell diamonds online with Mondiamo. No hassles, no bargaining.

  • Environmentally friendly

    We recycle and reuse the diamonds and precious metals we acquire, reducing environmental footprint.

  • Online pure play

    Because we are a platform to sell diamonds online, that means there’s less overhead than traditional brick-and-mortar buyers. As a result, Mondiamo provides you with more value when you’re selling your diamond jewelry. There are no hidden fees and no additional costs, which means more money for you.

    "...transparent process for those looking to sell their diamond jewelry."

    "...Mondiamo provides that transparency to those who wish to sell their diamond jewelry."

    "...offer better prices and more transparency than the traditional buyback sector."