What's the tile material and what is the application? A grout line is a personal decision, assuming all things are equal.

Yes if the tiles are not cracked and are in usable condition. You can also choose to leave minimum gap between two tiles.

Thnks a lot gor taking your time from aura interiors.i admired your work been a follower too....im waiting till my kitchen slab is fixed in black granite galaxy.... My idea right now something young and luxurious looking which black n metallic will give... Any suggestions regarding toughed glass for kitchen is it durable... Houzz has so much to offer...great help... Thnks again

@Rock Doc: Are you addressing this to me? I haven't actually bought these tiles yet - when I do, I will definitely be going for the handmade ones. They're a work of art and irreplaceable in my opinion. However, there are also screen-printed tiles available in the market in more or less the same patterns; the workmanship is of course different, but you get them cheaper, and they're also more easily available. You could give that a shot. I'd recommend Aakaar Flooring Solutions - they're here on Houzz and are able to provide both the above-mentioned types.