Pi Ring

A handmade, hand-stamped Pi ring, make the perfect gift for mathematicians, math teachers or anyone who loves having a go-to pair of subtle Math bling. Pi is defined as the ratio of the circumference of a circle to its diameter.  Pi, or in symbol form, π, seems simple enough to understand.  However, it's an "irrational number," meaning its exact value is inherently unknowable.  We here show you the first 30 digits after decimal point on this Pi wrap ring. You will be able to leave a gift message in the SPECIAL INSTRUCTIONS field during checkout. Material: Sterling Silver Hand-stamped Adjustable ring sizes US 5 – 9 Comes in gift-ready package. Treat yourself or a loved one!