Does the tile cutter affect the cost of paving?

This is a good question. The first answer is no, it should not affect the cost of laying a pavement directly. However, this is true only if the tiler who is doing the work is using a good cutter from good brands like Sigma or Montolit. These companies have been studying for years the best solutions, creating professional products that reduce the undesired damage of new tiles. The problem arises if the tiler is using a some Chinese low quality cutter. In this case, it often happens that while cutting there is a lot of damage to tiles, especially if you are laying porcelain hard tiles. These damages mean that the end user will for sure have a higher price to pay, since to obtain a good result, more tile have to be used.

Unfortunately some (non professional) tilers prefer to save a few tens of Euros buying Chinese manual cutters which cause a lot of damage, slowing the work progress and thus increasing costs.

Check what kind of tile cutter your tiler is using. In Italy it would be very suspicious to find other brands than Montolit or Sigma which have been leading the market for several years. There are some other small producers but there is always some doubt about their tiling tools. The same reasoning can be applied, even with more caution, to electrical tiling tools used to cut ceramic tiles. Also in this case other brands than Montolit and maybe Raimondi, are not well known and there are no certainties about their products. It is way better to focus on quality if you want to avoid unpleasant surprises. Regarding electrical tile cutters, Montolit or Raimondi have more experience than Sigma since the latter is specialized in manual tile cutters.

When hiring a tiler, don't hesitate to ask what tile cutter he uses, this will be a first step to understand if he is a good professional or not.

To summarize:

Leading brands which mean very high quality tiling tools:

Manual tile cutters - Montolit and Sigma

Electric tile cutters - Raimondi and Montolit