Hear from other diamond sellers

Featured Review

Mondiamo Makes It Easy and Lucrative

I was incredibly nervous to send my expensive diamond to Mondiamo. After finding many positive reviews online, I decided to give it a try mostly because Mondiamo is related to Blue Nile.

My experience with Mondiamo was incredibly positive. They called, responded to both calls and emails in a timely manner, kept me informed, and really went out of the way to answer all of my questions and make me feel comfortable.

In the end, I received 32% more for my diamond from Mondiamo than I was being offered at home.

If you are looking to sell a diamond, I highly recommend Mondiamo.

Recent Reviews

At Mondiamo we believe that you should feel good about selling your diamond jewelry, but don’t take our word for it.

This process was so easy, it can be an emotional journey when you return a wedding band that is no longer needed. This process made it easy to make that decision and comfortable that it was going back into good hands! Thank you

— Nat A.

I sold a second ring to Mondiamo because of the great service!

— Alissa C.

Thanks to Ann and other team members, this transaction was extremely efficient and pleasant.

— Anonymous

Thank you for the additional funds. We're very satisfied with your process and company!

— David

The interaction with Mondiamo's client care team made me more confident and happy with my decision to sell

— Scott

Wonderful experience

— John B