The band is 1/4 inche wide and this ring is available all a sizes on line and we have a few available in our shop. All there sterling silver we use in our shop is from a refinery in Ontario Canada.  

Amazonite is an attractive gemstone known for its distinctive blue and green color. It is a variety of potassium feldspar called microcline. Its chemical formula is KAlSi₃O₈, indicating it is composed of the elements potassium, aluminum, silicon, and oxygen.