Here are some that may work, also check Pottery Barn, they have a new light that looks remarkably like the Clemson from RH, in ORB. It is 6" in diameter and $119.
Kichler is generally reasonably priced and is good quality. You can go to their website for all the options, there are others that may work for you, but here are a couple.

Kichler Hatteras, 11.6" diameter, $250
{{!gwi}}From Drop Box

Kichler Sayre, diameter = 10", $190
{{!gwi}}From Drop Box

Murray Feiss, Parker Place, lots of sizes and prices, can be all metatl or white glass with metal trim
{{!gwi}}From Drop Box

Not exactly what you asked for but I love this glass, Progress Lighting, Archie collection, 5.75" $70
{{!gwi}}From Drop Box

Have you tried Rejuvenation.com?