TOUS Sweet Dolls heart pendant in rose silver vermeil. Heart size: 2.2 cm. Sterling silver plated with 18kt gold with a thickness of 3 to 5 microns and with no other metal between them. This item does not include the chain. Production technique: Electroforming. Production technique: Electroforming with internal core made from resin that acts as a base, as well as giving the piece both stability and durability. Approximate weight of silver: 1.8 g. Approximate weight of the base: 1.3 g.