Not sure if I am allowed to post this, but Screwfix have some diamond blades for your wet cutter going cheap (less than a fiver). Various sizes. They also have free delivery today only (if you spend more than £10). If they do not have your exact size then you could buy one of the cheap disks and fit a 'reducing bush' so that it fits your cutter. Google 'tile reducing bush' and you will see what I mean. Every penny counts. Cheers Sean