White gold studs with topazes, amethysts and roses carved from chalcedony

White gold studs with 2 roses carved from chalcedony weighing 2.3 g, pear-cut topazes weighing 3.65 ct, 2 round-cut amethysts weighing 2.37 ct, 64 round-cut diamonds weighing 0.20 ct 3/5.