an adornment (as a bracelet or ring or necklace) made of precious metals and set with gems (or imitation gems)

The Rings of Power are the twenty magical rings created by the Elves of Eregion under Sauron's tutelage in J. R. R. Tolkien's legendarium; Three were intended for the Elves, Seven for Dwarves, Nine for Men, and one, the One Ring, was created by Sauron himself in Mount Doom.

attach a ring to the foot of, in order to identify

a ring given and worn as a sign of betrothal

a ring worn as a memorial to a dead person

a small ring

a ring bearing a signet

a ring (usually plain gold) given to the bride (and sometimes one is also given to the groom) at the wedding

The Rings of Power are the twenty magical rings created by the Elves of Eregion under Sauron's tutelage in J. R. R. Tolkien's legendarium; Three were intended for the Elves, Seven for Dwarves, Nine for Men, and one, the One Ring, was created by Sauron himself in Mount Doom.