Have a look at West Country Nurseries website and they have pictures of Queechee and Sultan's Palace that are very similar and yours may be one of those two.

Dunno what it's called but it's gorgeous!

Hi Sophidog, it is identical to the iris I was trying to identify last week. Here is a link to my question and picture. Let me know what you think. I too think it is beautiful. As you will see from my posting there are a few possibities. My money is still on Iris 'senlac'

http://www.growsonyou.com/question/show/46672

I have put Inverglen's suggestions into google and I don't think they are quite the same. I also looked up all the other suggestions I was given and don't think I found a match.

Cheers, Scottish