Dealing directly with private party clientele can be very rewarding but also much more work, along with a potentially higher liability factor. If you, the seller, has a working knowledge of the product you deal in and represent it properly, there’s little to worry about. If another dealer challenges you, perhaps to try to steal your customer away, you will be confident enough to stand behind your transaction in a professional manner. It’s extremely important to try to make the buyer very clear about the details of the diamond being purchased.