That they are, however as you can see from my photo, they do lose their color and contrast over the years. I think many people (girls especially) will really regret having them when they get older. I know I wish I had never gotten mine...but I did it long before it was the "fashionable" thing to do like it is now.
You should get those re-inked. The ink they use now is significantly different to 25 years ago also, not supposed to fade as much! Time will tell. Also depends on the artist. My father has one from about 25 years ago also that is still as bright as the day he got it.