I have only been detecting for about 8 months and I have found zero rings. This weekend I decided to take a trip out to the Rhine River by Eltville, Hessen Germany and go along a small rocky beach outside of town. I found about 8 dollars in Euro clad, 5,50 in Deutsche Mark coins and these three rings. The first on the left is .925 sterling and I believe the turquoise is real on top but cannot prove it either. The one in the middle appears to be 10 or 14k gold. Finally on the right is stainless steel ring from Fossil. Was a nice trip and really enjoy hitting the beach with the F75. If anyone has an opinion about the gold ring I would like to hear it.