A shimmery, raw Pyrite gemstone is hand set it into sterling silver band. It makes a great one of a kind gift for yourself or a loved one. This ring is one of a kind and is a size 6-6.5. It can not be re-sized The stone is 13mm x 15mm **** Pyrite, also known as fools gold, is a iron mineral . The name comes from the Greek word meaning "a stone which strikes fire". It is known to help with depression, anxiety, digestive and circulatory systems, and helps gain a more positive outlook*****