Hi There , You get good ones near Majestic..But the best ones are available in chennai , they have a lot of shipments done to on daily bases...
do visit Bhavani bangle store in 3rd block jayanagar. they display jewels on tuesday and saturday morning from 8.30 to 10. YOu can rent as well purchase. they have quite a lot of collection. if you are going for purchase then try chickpet and Raja Market parellel roads for good bargain.
Yup Bhavani Kangan, near dosa corner / behind 3rd block bus stand in Jayanagar is the best option, the sales guys show any number of designs without making faces.....Rajamarket also has good variety if you have time to visit and check out few shops.