18K Yellow Gold Provident Jewelry Custom Design, 1.65CT H/SI2 Heart Shape, GIA Grading Report, Set in 18K Halo necklace 20D=~.32ctw, 17/18"
Take a piece of non-stretchable string, ribbon, thread, or a thin strip of paper. Wrap it comfortably around your ring finger, close to the knuckle.