In Europe we have already had two increases this year. First was on Feb 15th and due to the weak Euro, sort of a currency correction. I do not recall the percentage, think it was approx 2%
2nd was on May 1st, this was the "normal" yearly increase, 6% if I remember correctly.
I remember some years there was another increase in September, not sure whether they did it last year.
As Tiffany just had another increases yesterday there might very well be one around the corner from Cartier.
But Tiffany only has had one this year so far.