The pentagon hoop earrings with a geometric pattern made from two tones of enamel. The earring is fastened with a gold earring pin that is set with a carre cut diamond. 18k gold | hand-laid enamel in 2 colors: green and red (possibility of different colors upon request) | 18k gold pin set with 1.3mm carre diamond Diameter: 15mm *Sold as pair*(i) ENAMEL is a decorative coating (glass powder) applied to metal at high temperatures (around 800 degrees Centigrade). Enamel is an ancient practice, dating as far back as the 11th century.