3.4 grams and 18k yellow gold. The entire charm measures 21mm x 10mm. The bail fits up to a 5mm x 4mm width chain. There is one spot on the bottom slightly worn off where it has been previously tested for gold purity (check photos). The little stick attached inside of the cup moves back and forth(does not come out, it’s attached permanently). Purchase comes with the charm only, no chain included.