The rare shards of Roman glass set in Angie Olami jewelry are 2,000 years old and have been unearthed by archaeologists in Israel on ancient city cites that were once part of the Roman empire. The iridescent colors have evolved gradually over the centuries as part of the glasss chemical reaction to the sun, water and earth in which it was buried. Today it is necessary to keep the glass dry, as water or other liquids may alter or impair the shimmering patina. The designs for the settings are inspired by artifacts discovered on archaeological digs in Israel. All of Angie Olamis Roman glass jewelry is hand cut from different fragments of a variety of glass items which makes each piece truly one of a kind. Sterling silver setting.