Light Seafoam Chalcedony Faceted Bar .925 Silver Bezel Connector 2 ring North South orientation. A calibrated Seafoam Chalcedony exhibits a greenish blue body with good brilliance and is translucent with a vitreous luster on a well made symmetrical body.925 Silver Bezel Connector 2 ring North South orientation. A calibrated Seafoam Chalcedony exhibits a greenish blue body with good brilliance and is translucent with a vitreous luster on a well made symmetrical body.