2-Tone Infinity Rhythm of Love Diamond Necklace 10K Gold10K Rose and White Gold Infinity Diamond Rhythm of Love Necklace. Features . 16cttw of round diamonds set in an infinity style pendant with round diamond rhythm of love center. Comes with an 18 inch 10K white gold chain. Rhythm of love necklaces and powered by her heartbeat and are designed to keep the center diamond constantly in motion and sparkling.