"925" or "SS" represents certified "sterling silver" and is stamped on jewelry to demonstrate the high quality of the product.
This stamp represents the fact that the piece of jewelry you are buying consists of 92.5% genuine silver.
For a "925 lt" mark, what we found is that the jewelry was from a Thailand maker.
Learn more about jewelry markings on precious metal at Ebay.com.
When buying jewelry, never act like this is your first—or even fifteenth—time in a jewelry store so jewelers will be hesitant to try to dupe you. You must be confident and in complete control.
Check out some tips on how to buy jewelry like a jeweler at Vice.com.