Take with you one of the most representative pieces of Leonardo da Vinci. Inspired by Leonardo da Vinci "Vitruvian Man", this ring seems to be taken from the paper. Stand out with the iconic work of Leonardo da Vinci and shows the High Renaissance style every day. Material: 925 sterling silver, 18K gold platingWeight: 8.6 grams  INSPIRED BY PACKAGING Every order comes with a Kuurth's sphere and an owner's guide. SIZE GUIDE - The ring should fit you comfortably; it should be tight enough not to fall off but loose enough to slide over your knuckle. - Measure the circumference of the finger where you are going to put the ring with a sewing meter, if you do not have a sewing meter you can cut a strip of paper, surround the finger with the strip and make a mark. - Then measure that section of the paper with a ruler or tape measure, the measurement you get is the length. - Measure the finger a couple of times to avoid mistakes. OUR SIZE DIAMETER LENGTH XS 16 MM - 0.629 INCH 50 MM - 1.968 INCH S 17.3 MM - 0.681 INCH 54.34 MM - 2.139 INCH M 18.5 MM - 0.728 INCH 58 MM - 2.283 INCH L 19.7 MM - 0.775 INCH 61.8 MM - 2.433 INCH XL 21 MM - 0.826 INCH  66 MM - 2.598 INCH