This is a gorgeous, larger size open heart pendant with a 1/4ct diamond. The heart hangs beautifully on any chain or cord. It has a whimsical but very high end look because of the size. The pendant is solid 14K gold, not hollow. Consequently it is hefty for its size weighing 6.2 grams. The heart measures 1" square. The heart is 4mm thick at the thickest point. The diamond is white and bright, G-H color and I clarity. The diamond is a very nice size. The pendant is not marked but tests as 14K gold. The heart has a luxurious feel because it is so large and heavy.