Interested in buying gold jewelry as investment

You'll get 95% of spot for scrap jewelry. So to make it worth your time, you need to make say 15% profit, so figure you should be offering 80% of spot. If you are not aware of hallmarks and other gold markers, you won't be able to spot fakes and other counterfeit gold items. This could be a big deal if you make a large buy and it all turns out to be counterfeit. Do you have a lot of cash? Gold is expensive. These people want cash, right now. Do you have enough cash to make it liquid? Also if you are paying out large sums of cash, there are IRS reporting requirements. Are you up to that? You also need to advertise so people will call you. That eats into profits. Most of these hotel buyers take out full page ads, come to an area for 2-3 days, fleece it for all it is worth, and leave town as fast as they came in.

This is a losing preposition as a money making full-time gig. But word of mouth and maybe signs on bulletin boards would get you enough business to make it fun as a hobby.

as the wars wind down in afghanistan and iraq expect gold prices to drop,people that want gold at this high price have bought it,,stay away from the gold bubble if it pops you will be in trouble

You do not invest in gold, you speculate in gold.