[MRM]

Go to one of the on line sites. Seriously, they're less risky than shopping at a mall. If they sell something that's not as advertised they would lose their site. They're less protected than a Mall jeweler who can claim he told you the diamond was cheap when he saw of it to you because you have a perfect paper trail of what they sold you.

Call a couple of the online sites, tell them what you want, and see who gives you the best price. You'll get something that's not even available at any price at your local jewelry store or even a Costco or Sam's.