I recently bought an Emerald stone from Gempundit.com I would say I am more than satisfied with their product, delivery, packing and customer service (A 5 star for that).
The Gem came with a free certificate which is a very decent one and the customer service team will help you on your need. They are not keen on closing the deal as others do.
I got my space to shop and all my queries were attended.
Thanks to you guys! Keep it up.