Vintage GTRJ Sterling Silver Vermeil 1/2 cttw Diamond Open Heart Necklace

This is a very nice gold plated on 925 sterling silver, Vermeil, 1/2 ctw diamond open heart pendant. There are round cut and baguette cut diamonds. The pendant is 1" 3.66 grams 18" necklace length On the back of heart signed GTR J 925 On the spring ring it's stamped 925 On the clasp there is a P Gently used Comes with box