Loetz style pink iridescent glass vase.

I've had these for a long time and they get regularly used because I've always assumed they're a cheap copy of some nice old glass, but I don't know enough to rule it out, could anybody give me some idea of what they likely are?  I seem to remember reading once that if it has chipped easily that is a sign of lower quality? About 14cm tall. 

Bohemian late 19th century or early 20th century. Lots of makers of iridescent glass. Kralik is worth a look