@Crackery - gold is still horribly expensive and if you want genuine 9ct hallmarked gold there is no way you're going to get it for £60.
Just checked and trade price for a piece of 9ct gold 3mm wide and 1mm thick, 150mm length (common cuff length) is £120 - appx £24 per gram. That's before the work involved making the cuff, hallmarking, packaging and paying online fees (NOTHS for example takes 25% commission).
The gold plated silver bangle you showed has only a very thin layer of plating and will wear off quite quickly. Personally, and as a bangle wearer myself, I don't think 1 micron is sufficient for a cuff/bangle as they have a tendency to scratch easily.
Gold fill would be a better option although for a budget of £60 you may still struggle. Gold fill has by law to contain at least 5% gold but because it's bonded rather than plated it will stay looking good for much much longer than thin gold plating. The base metal of choice is brass - similar in colour to gold so scratches and scuffs won't be so visible either. The major downside as you will find is it's more expensive than plating over silver.
Finally, if the price looks too good to be true, then read the small print very carefully and if in doubt email the seller to confirm whether the item is solid gold or not. For instance, the link to the Thomas Sabo cuff another poster linked to says yellow gold but I couldn't find anywhere where it states the carat of the gold, whether it was solid or hollow, or whether the item was hallmarked (if an item is described as 'gold' then under UK law it has to have a full assayed hallmark).
Good luck!