750 Rose Gold (18 kt)---Triangle pendant: 1.3 cm (0.51 inches)---Lobster claw clasp with logo-engraved medal---Length: 45 cm (17.71 inches) adjustable to 43 cm (16.92 inches) and 41 cm (16.14 inches)---Made in Italy---Each step of Prada's responsible gold and diamond production chain is verified and traceable thanks to Aura Blockchain technology.