This vintage 1940s-1950s Japan sweetheart stretch bracelet features a prominent emerald green heart-shaped rhinestone.

Band is about 1/4" wide and the heart shaped centerpiece is about 5/8" x 5/8". In a resting or unstretched form they are about 5" in inner circumference.  Stretched - band measures very roughly 6.5" around or circumference at most.

 Even if your wrist size is 6.5" or smaller, please remember that these don't have a clasp and need to fit over your hand as well.  And being very old I WOULD NOT recommend trying to squeeze over hand to make fit.