The listing, vintage necklace with beads and 12k gf gold has ended.
Here's a nice vintage orange beaded necklace. There is a tiny marking on the clasp that seems to read 1/20 12K GF. I don't know much about jewelry, but according to Google that indicates it is gold-filled (gf), meaning that a thick layer of karat gold is applied to a base metal. The 1/20 is the proportional weight of the gold to the full weight and the 12k means that it is 12 karat gold. Again, the marking is very small, so I'm not 100% sure that's what it says, and I can't vouch for the info from Google. I've tried to take a close up photo of it so you can see it for yourself. It weighs about 1.9 ounces and measures about 17.5", maybe almost more of a choker.