I referred this thread to a friend of mine who bought recently. This was his reply to me:
The first place they mentioned is the one I bought in - O'Connors of Harold Cross, and I was very pleased. They should easily get something there within their €2,000 budget, as the prices they charge are 50% of the figures marked on their rings (The recommended retail price). They are a wholesalers, hence the 50% discount. They can do any adjustments there also or manufacture there. I found them very helpful and courteous, and they were not pushing dearer rings in any way. They asked what price range we would like to look at at the beginning, and stuck to this.