Chanel jewelry has some beautiful designs, but there is much better out there.
If I'm going to spend four figures for costume, I would buy Solange Azagury-Partridge, Hanna Bernhard, Gripoix... Unfortunately, a lot of amazing costume jewelry designers folded in the mid-90s - fifteen years ago, I would have a better list! If I am going to spend serious money on costume jewelry, I want something I will still enjoy in 30 years.
Vintage Chanel is of better quality than modern - I do have some great pieces from the 70s which look newer than the pieces from two years ago.
Why do you think that happened? Did people just stop buying costume? Did it go out of fashion?
I love costume jewelry, but I buy only vintage. The quality on all the brands, both high and low-end, seems to have gone down, down, down in the last dozen or so years.