Small round cut Ethiopian Opal and Cubic Zirconia pendant measures just under 3/4" tall with the bail by just over 3/8" wide at the max points and is very small and light weight. Use a thin gauge chain. The color of the Opal may vary from the sample photos with each pendant and may have some red, pink, blue, green or orange fire. The pendant comes packaged in a jewelry box and includes a card about Opal.