Tanishq — Refused me to try out an earrings

I was here in the vashi navi mumbai branch with my family to buy something for my sister on her birthday...she was trying out some earings and I just took one to try it for myself...your staff Ms. U asked me not to wear it why? Then she said only one of you try again WHY?
Didn't want to create a scene there and spoil the mood but can't I try an earing?
Or is there any policy stating per family only one member can buy
The lady was indeed calm and helpful but what she said hurt me...I felt like I did some crime.
I am too a consumer and I too deserve to try it out.