Sam's Club Enters the Diamond Business

We've seen the Costco diamond, now Sam's Club has their own megacarat diamond offerings.  Sam's, a division of Wal-Mart is offering a 27-carat yellow diamond ring, set in platinum, for $610,000, and a 3.74-carat pink diamond pendant also set in platinum for $560,000.  Both items are deeply discounted and are estimated to be worth $750,000.  What's next, a Tiffany's booth at Wal-Mart?