ANCIENT STAR OF DAVID BRONZE PENDANT, 4th - 7th CENTURY C.E.
Diameter of star 21.2mm, full height of pendant 41.4mm
Pendant was purchased around 2004, and was dated to the first or second century C.E. While such a date is certainly possible based on the method of manufacture, due to the later popularity of these types of symbolic items and of the pentagram in particular, I believe a date of 4th to 7th century to be more likely. There is a very interesting article here about the discovery of early Jewish pentagrams in Israel.
A pretty and wearable pendant of the pentagram known as the Star of David or the Seal of Solomon.