Glennpeter Jewelers: Glennpeter Jewelers sells its biggest, most expensive diamond

Glennpeter Jewelers just sold its most expensive, biggest diamond - 10 carats - to a regular customer. The buyer is a secret. The price? The store in Albany, New York, prefers not to say. But the largest sale before this was a 6-carat diamond for $275,000. Here's what Tracy Lewis, the general manager who handled the sale, can say: The diamond wasn't for an engagement ring or a special occasion. The buyer wanted the big diamond to replace a smaller one in an existing ring. The buyer...