You can look into the swirling glass in this pendant, and see the depth. The glass is set on textured silver with a border of square silver wire. The 22" rolo chain slips over the head, no clasp needed. Dimensions are 2 1/4" by 1 1/8".
All silver, including the chain, is Argentium Sterling, a premium Sterling with a higher silver content that is tarnish resistant, hypo allergenic and brighter than Sterling.