Today, my 12 year old daughter had a soccer game at an Elementary School I had not detected yet. Then again, I have only gone detecting about half a dozen times with my Tracker IV. Found $3.22 in clad, about typical for a couple of hours at an elementary school. But I also found a nice looking gold necklace. It has the design of alternating one larger link, then 3 smaller links, one larger link, 3 smaller links, etc... The clasp has Italy 925 stamped on it. My understanding is that 925 is Sterling Silver, and this must be a gold plate. I am sure it is a recent loss at the school as it was right below the surface of the wood chips. Am I correct in the 925 being Sterling Silver? Could the clasp alone be SS and the rest be gold? Any ideas?