Hi Sue.
You can find much of the merchandise available at
Uptown Jewelers on Main Street U.S.A. at Disney's Magic Kingdom Park online for purchase through the
Disney Parks Authentic Merchandise Page. I've linked it for you just above with the accessories link already opened, displaying such items as fine jewelry, designer handbags, watches and even Arribas Brothers jewelry pieces.
If you don't see the specific item you were seeking on the online site, you can also inquire through Walt Disney World Mail Order. A Cast Member there will be happy to assist you as they maintain a full, computerized catalogue of items available for purchase all around the parks!
Contact them by phone at 1-877-560-6477 or (407) 363-6200 or by e-mailing:
wdw.mail.order@disneyworld.com
It's best to know a description of the exact item you are seeking, whether that is the brand name, price point, or verbal description of the piece, it all will help them to find it in the system and they'll then be able to let you know the item's current availability. Once you've found what you're after, payment and shipping can be arranged right to your door! It doesn't get much more Magical than that now, does it?
I hope you are successful in finding just what you're after Sue!
Thanks so much for visiting the Walt Disney World Moms Panel. I hope we'll hear from you again soon!
Kirsten