Yuri, have you considered that in Italy, the sun is much stronger than here in the UK, which will have a different effect on the plant? Honestly, don't be disappointed, I believe that you have the true S flava "Goldie", from the photo's you posted, I would be surprised if it wasn't.
After all, there is no evidance that there even is a fake "Goldie" plant doing the 'rounds
Alex.