Hi SE Stan,
Sorry I don't use the numbers on gold much as gold varies so much from Karat to Karat (mixture of silver, brass other medals to pure gold) that it hits up and down the x/y graph as to render using numbers unreliable. I can tell you this, where silver would hit generally in the same areas gold jewelery varies far greater on the graph. Small thin gold will hit like tinfoil and thicker bands or rings with large crowns that hold stones will hit like bullets, medium rings like pull tabs. The sound though is usually quite solid and sharp. If I am in my area where I find gold rings I will practically dig any target that hits solid tones and some iffy ones too that I just have to see what it is. Some of them are gold. And if it is easy to dig then I open the machine up with very very little discrimination and check every target. If it is hard to dig then I will discriminate out the common problem items I find and still dig lots of odd signals. Other than that I would suggest you do what I did and test every ring and gold item you can find to get experience with the way the machine reacts and where the rings will show up. This worked well for me and my gold take increased and I also found a 2.5 dol gold coin that I am certian lots of folks left for me because it was only 5 inches deep next to the iron junk.
Good luck to you.
utahshovelhead