Diamond had a ruling against them to force them into selling insurance to men
There is gender selection now just like admiral. They basically (for me) give out identical quotes to admiral, but with about 10% off every time.
Examples:
BMW 540i, Admiral £1100, Diamond £1000
BMW 740i, Admiral £1200, Diamond £1050
Audi A8 4.2QS, Admiral £1300, Diamond £1100
My old car: MR2 GTS Turbo import with mods, Admiral £990, Diamond £900
Absolute beauties
They seem to quote on near as damnit everything too, the only cars they seemingly wont quote on are M-series BMW's, Impreza Turbo's (image problem i guess - wont quote on even the slow turbo2000 model), AMG merc's, and certain imports such as Skyline's.
I'd definately urge anyone young to try them.