eternity ring 
noun
A ring given as a symbol of lasting affection, typically set with an unbroken circle of gems: a gold and diamond eternity ring...
- Many women also wear their gold wedding ring with a diamond engagement ring and an eternity ring.
- The rings were my aunt's original wedding ring, her engagement ring and her eternity ring.
- In the latest burglary, they took a three-string set of pearls, given to me by my mother, and an eternity ring belonging to my mother-in-law.
- compand
- compander
- compandor
- companiable
- Companies Court
- companion
- companionability
- companionable
- companionableness
- companionably
- companionage
- companion animal
- companionate
- companion cavalry
- companion cell
- companion crop
- companion cropping
- companioness
- companionhood
- companion-in-arms
- companionize
- companion ladder
- companionless
- companionly
- Companion of Honour