The Sporos earring is 925 Sterling Silver and 18k yellow gold. You may choose whether you like the stud earring in 18k yellow gold or 925 Sterling Silver. The long earring measures approximately 6.9 x 0.4 x 0.4 cm and the stud earring measures approximately 1.4 x 1 x 0.5 cm. Sporos earrings set comes with a high gloss finish.