Chrysoprase gemstone and copper wire ring. I created this ring as a prototype during my #100daysofshinythings project. Chrysoprase, in the chalcedony quartz family, is such a beautiful stone. The stone is rough cut, so size is an estimate, but it's about 16mm x 18mm. In "The Book of Stones," author Robert Simmons offers, "Chrysoprase helps one remain centered in the heart, providing the courage to face difficult or threatening situations with steadfast resolve and truth-centered compassion." Size 7. Other ring sizes available upon request. Click on large images to enlarge further.