you probably can't purchase it on the below mentioned site but you can definitely find the right designs for Indian jewelry on the web and also get the contact details.

http://www.jckindia.com/Designs/8.aspx

Answer:
Here are some; many more available

http://www.garlandsjewelry.com

www.thunderbird-jewelry.com/

http://www.gordonwheelertradingpost.com/

http://www.blueeyedbear.com/index.htm