We've already seen massive diamonds sold through stores like Costco and Sam's Club. Now that BJ's Wholesale Club has created an online store they decided to make a splash by putting an expensive dazzler on sale. They are selling a 41-total-carat-weight diamond necklace for $249,999.99. The online store has items that are not available in stores and for a limited time non-members can shop the site at member prices. In an article on Diamonds.net, the vice president of e-commerce at BJ's, Jennifer Avey promises that this is just the first of one-of-a-kind items on the site.