What is the current gold price per dwt?

It depends, a dwt is 1/20 of an ozt which is right around $950, so for 24k pure gold it has about $47.50 per dwt, however most jewelry is not pure.

10k=41.7%pure=$19.80 per dwt

14k=58.5%pure=$27.78

18k=75.0%pure=$35.63

although that is the price for amount of pure gold in the jewelry, do not expect to receive this when cashing it in. When turning in gold expect to get about $10 dollars less per dwt because of the refining process and the labor cost. You may expect to receive more if you have a larger quantity due to a larger profit spread.