This is different type of success story. Success of excellent Multi IQ technology that Minelab Equinox 800 is providing. It's common knowledge that it's hard to find gold micro jewelry. Most of detectors have hard time detecting low conductive gold targets like earrings, chains, bracelets. Even if they do they detect them on super high sensitivity, on air or ground tests. Those detectors are than super unstable, noisy, and 'hot'. It's not possible to use them this way in normal trasure hunting, you can't distinguish those micro gold items from background noise. Minelab Equinox 800 is different. I found this gold earring back while water treasure hunting. On very trashy place, full of iron and many other signals. It weight's only 0.10 grams. It's smallest gold jewelry you can find! Equinox is different beacause it can truly find micro gold targets in all conditions with stable and pleasant work. That's what Multi IQ is for. ID on that gold earring back was 1. It was clearly hearable and stable. I found it with 6 inch coil and following settings: PARK 2, MULTI, TRACKING, RECOVERY 6, SENSITIVITY 19, IRON BIAS FE 0. I also found bunch of other stuff including part of gold chain on that hunt!