Innes: Heart-cut Simulated Tanzanite and IOF CZ Dublin Claddagh Promise Ring Silver, 3142B A gorgeous choice for a promise, friendship, commitment or engagement ring and the ideal gift for someone with a December birthdate! Features an approx. 6.0mm, 0.75 carat, Heart-cut Simulated Tanzanite Ice CZ solitaire. Made with solid 925 Sterling Silver. Love, loyalty, friendship and commitment are the hallmarks of our Dublin collection of Claddagh rings!