This faux-diamond and black enamel ring was screen-used and screen worn by Erika Slezak on One Life To Live. It is Viki's Wedding Ring from Clint Buchanan from their 1st Wedding in 1982, It can be seen in many episodes up until at least 1991.
It has been screen matched in several episodes throughout the 1980s. You can see the same gold strands run down between the diamonds and the black enamel. You can also see the same number of faux diamonds and bubble shape it takes on the top of the ring,
I have attached screenshots from a couple 1986 episodes of Viki wearing the ring. She mentions in the same episode from April 1986 that the ring is her 1st Wedding ring from Clint when he proposes a 2nd time with a differnt ring. (Not fancy)
