Are you looking for the perfect necklace for a younger lady or any lady that likes smaller jewelry? This is it! This tiny heart is just 11x11 mm (7/16x7/16 inch) and contains one .04 ct round, genuine sapphire. The heart is made of solid .925 sterling silver. The pendant comes on an 18 inch long, rope chain with a round spring clasp and is also made of solid .925 sterling silver. Pendant and chain weigh 1 gram together.