These are Caramella (white hearts) which begin with a base of white and then transparent authentic Murano Glass is applied. It gives the hearts a nice red colour. The size is approximately 13mm and is slightly puffy.
The earrings are made by hand crafting the headpin from sterling silver in a thicker wire than the usual manufactured pins for extra security. They are then finished with a 4mm clear Swarovski bicone bead