Vintage sterling silver rings

Edit to post is size 61/2 has sold.PRICE IS 4 ALL 3 sterling silver rings. The size 6 ring has a large pink tinged ball in a very nice setting. It is marked 925 with another hallmark. The size 7 1/2 ring has a wide band and is marked 925. The large pearl like stone is accented with 2 hearts on either side of the stone. The size 8 ring has a large white stone that looks like a freshwater pearl. I am not sure if it is real or not.PRICE IS FOR EACH