Correct me if I'm wrong but JTV used to be mostly gems, not finished jewelry.
Artisan jewelry is very good, good quality, good price when on special.
I don't buy much, maybe 8-10 pieces in a year but I've had to send back pieces for poor quality. Stone setting failures, and a poor design on an earring. No problem with the return
Some of what they sell is junk, I see the same stuff all over the Internet
Their Bella Luce line is similar to QVCs Diamonique. But I personally think both are overpriced for what you get. There are 1 or 2 hosts I cannot watch because they are so aggressive. Have to turn it down or off.
The same caveat works there as anywhere, you get what you pay for.
Personally, I would prefer to buy a quality stone & have it set myself locally.
Check out their website. Their search is very easy & very specific. They also have items on the website not shown on TV.