I Am Rock's Divine Proportion ColleCtion is inspired by Leonardo Da Vinci's sKETCHES oF geometRIES in Luca Pacioli's book De Divina PrOportione (printed 1509). REFERENCING PLATONIC SOLIDS, STUDIED BY PLATO IN 360 B.C, Designer Peta HeyS' original interpretations of THE SHAPES TAKE THE FORM OF CONTEMPORARY 2d wire HOOP designs. These sterling silver AND GOLD PLATED hoops are light weight and suitable for everyday wear.