Found the LG cent undatable at a 1800 house. Found the 1946 dime at a 1900s house. And the Gold ring (no K marking) at an early 1800s house that I also found the Sterling
ring with the glass Emerald. Found these on 12/30/15 and 12/31/15
.....too bad I didn't pay attention to when someone spoke about jewelry and said when the karat markings were standardized. That might help you date it. Nice finds, tho.