Ada Diamonds purchases laboratory-grown diamonds from private individuals. To see if your lab diamond is eligible for our Public Purchase Program, please submit the form below and we will respond within one business day. Specifically, we seek to purchase man-made diamonds that meet the following criteria:
Carat Weight: 1 carat or larger
Color: D, E, F, G, H, Blue, Pink, or Yellow
Clarity: SI1 or better
Independent Certification: IGI, GCAL, or GIA
Date of Purchase: More than 30 days ago
If you purchase a lab diamond from Ada Diamonds, it is automatically eligible for a better offer than diamonds purchased from another retailer.
Ada Diamonds does not purchase any precious metals, ungraded lab grown diamonds, natural (mined) diamonds, or any other gemstones such as sapphires, rubies, or emeralds.
Sellers must own the lab created diamond and provide unaltered proof of purchase from a U.S. retailer as well as the original grading report from GIA, GCAL, or IGI. We purchase diamonds graded by IGI New York, IGI Antwerp, & IGI Dubai. We do not purchase diamonds graded by IGI Mumbai.
Sellers must be U.S. residents acting in a personal capacity. If you are a lab diamond wholesaler seeking to work with Ada Diamonds, please email us at firstname.lastname@example.org.