It depends on your preferences - and also your physical complexion IMO. I am tall with long extremities, so all small formats look rather funny on me (like a small dog collar around my neck
I prefer larger formats 140 and maxi twilly to balance my proportions. I do own a few garvroches which I wear on occasion in warm weather on my neck but they are hardly my working horse. But someone of petite stature - they look wonderful and stylish on. I don't use them as accessories for bags, bracelets, etc.
If you want to try, get one and see if you like it. Maybe get one second hand without shelling out a full price for something you are not sure about - maybe you will love it!