loose lab grown oval diamond for sale ada diamonds san francisco, ca



Hand-Selected by Our Experts

loose lab diamonds

Ada Diamonds does not grow its own diamonds; rather we buy from diamond growers around the world, hand-selecting the best of the best lab diamonds on the market. Every diamond we sell above 0.50ct is graded by third party gemological organizations.

Your concierge is a lab diamond expert with advanced knowledge of lab diamonds. Read about good vs bad lab diamonds.

We devote several hours to curation and media, all at no financial obligation to the client. Ada Diamonds is not a discount retailer and will not price match online retailers that require clients to buy sight unseen and offer little to no customer service.


Why We Don’t Publicly List

Unlike other online retailers, we do not list our inventory publicly. Why?

  • Navigating through a database of thousands of diamonds is a difficult, intimidating, and sterile experience. You deserve better.
  • Our lab diamond experts use criteria beyond the 4Cs to curate a list of diamonds tailored to your specific inquiry.
  • We are proud diamond snobs. While other retailers will let you buy any diamond regardless of quality or value, we refuse to offer bad diamonds.

Our Core Values


Simply put, we’re snobs. We’re here to help you find a diamond you can be proud of.

Open Cathedral Solitaire Lab Created Diamond Engagement Ring in Platinum


Your love is one-of-a-kind and your ring should be, too. Always custom, always conscious.

Classic Lab Created Diamond Stud Earrings Artistic


We’re committed to providing a five star experience, every single time.

Ready to Start Your Concierge Experience?