Bidding Instructions

Auction Format

Rapaport Melee and Single Stones Auctions are similar in format to silent auctions and tenders, with viewing held over a five to eight day period. Bidders may schedule appointments to view the lots and must submit sealed bids by the close of auction. Once the auction is closed, sellers have one business day to approve or reject the highest bids. Winning bidders are invoiced and have three business days to make payment.

To Participate as a Bidder

Melee and Single Stone auctions are open to all qualified members of the diamond trade.

Become a Registered Rapaport Trading Partner

  • Register here to become a Rapaport Trading Partner.
  • Submit a copy of your company's Business License or Certificate of Incorporation via email to
  • Submit a bid deposit of 10% of your bid limit via wire or check.
View Auction Calendar Schedule an Appointment

Submit Bids

  • Buyers may inspect all diamond lots in our office during an auction.
  • Sealed bids may be submitted online or e-mailed to by close of auction.


  • Winning bidders are notified and invoiced after auction close, and full payment is due three business days after date of invoice.
  • Payments are accepted via wire transfer or certified check and made to the Rapaport office where the auction was held.
  • Merchandise is released after funds clear Rapaport’s bank account.

Delivery of Diamonds

Upon receipt of funds, lots will be released to winning buyers at the Rapaport office where the auction was held. Shipping can be arranged with a buyer’s carrier account.

Sales Terms

  • All sales are final, AS-IS for cash with no returns, refunds, or exchanges.
  • Rapaport does not guarantee the quality of diamonds or grading reports, but does guarantee the diamond and grading report match. Bidders are encouraged to view lots.
  • Details are outlined in the Bidder Terms and Conditions.

All participants in Rapaport Auctions must comply with U.S. Patriot Act and OFAC regulations. The Rapaport Group does not deal in diamonds from Marange, Zimbabwe, or diamonds directly involved in human rights violations.