Costco sells diamond rings. And not just cheap ones. They’ve got a bunch of rings that cost more than $50,000, and some over $100,000. But their most expensive ring is a 10-carat diamond engagement ring that costs $420,000. And someone actually bought one. At some point in the first three months of this year, someone really bought a $420,000 diamond ring at Costco. And we know that because it was such a big purchase that it helped Costco’s entire financial quarter. Their first-quarter sales were up 5.6%, and they specifically mentioned that the ring purchase made an impact but they didn’t go into any other details like who made the purchase.