Finally, Costco is catering to its multi-millionaire clientele. The discount retailer is now selling a 6.77 ct diamond ring for a million bucks, the Consumerist reports. Costco has sold some high-end diamond jewelry in the past, starting with a $180,000 ring in 2005, but a million is quite the step up, the blog notes. And while it might seem out of place at a store known for bulk-priced groceries, it is a discount; Costco lists the ring’s IGI value at $1,601,875. (More Costco stories.)