My boutique will do half centimeter increments but, this would mean a lack of symmetry between the right and left sides of the bracelt. This was offered to me but, it would have meant uneven spacing around the center motif and I opted to keep it on the loose side.@rania1981 My boutique does it by cm these days, not by number of links removed (16cm, 17cm, 18cm and 15cm by special permission). Note that the clasp is not included in the measurement; I noticed this when I measured my bracelets myself. Some people have noted they are still allowed to do half centimeter increments, but my boutique will not allow it. I hope that helps!