I posted this on Pricescope, and got a few responses, but wanted to know if anyone on tPF has had the same experience: "I was looking at my e-ring the other day, and noticed a yellowish spot - like a tarnishing spot. After cleaning the ring in mild detergent and water, the spot was still there. Does any one have any idea what this might be, or if this is normal for platinum? I just got engaged a little over two weeks ago, so I'm really worried about it. My fiance and I have yet to reach the person who made the ring (she is on maternity leave)." Since my initial "catch", I've taken it to two local places (and they don't want to do anything for fear of being liable), and they don't know what it is. One place tried to steam clean it, but the spot was still there. The same jewelry store gave me a cleaning kit with a soft brush and I tried to clean it again - only now, there are TWO spots! The ring was appraised independently, and confirmed that it was completely platinum as my first thought was that it's "gold-plated" and I've rubbed the platinum off. All the research I've done suggests that platinum does not tarnish. Any advice given will be appreciated - I'm going out of my mind with worry! Thanks!