Vintage Sterling Silver Floral Mom Heart Locket Necklace

Vintage sterling silver heart locket is signed 925 R and is inscribed MOM and features a pink rose and diamond cuts.  It measures about 1 1/8 inches, including the bail, by 3/4 inch wide and it is on an 18 inch sterling silver chain.  It weighs 4.5 grams and it works perfectly and is in great vintage condition.