Jagdish,
My price guide for gold coins is out of date with the recent surge in gold prices. The best I can offer is an educated guess
Gold value for each coin = $933 U.S (about 586 UK)
Add a 10 to 15% numismatic value = + $100
Total = $1033 US (649 UK)
This is a conservative guess and would not be shocked if retail prices were 10% higher.
Hope this helps,
Ken
P.S. for some odd reason, my e-mail service has issues with non-US e-mail addresses. If you are from country other than the U.S. I highly recommend using the forums instead of the contact/e-mail