On Tue, 15 Jul 2008 18:45:45 -0700, in rec.crafts.jewelry gruhn
wrote:

If You will buy cheap the risk is higher that You will get a banana.

Is "banana" a regular term in the industry? Just curious.

Only if the jeweler using it happens to be also in the fruit business, or
hungry, or something. But the poster who used that term is a german speaker,
who's use of english may at times involve unconventional translations. I
suspect he meant something like "lemon", which does have a non-fruit well
understood meaning in consumer products in general.