It is generally accepted that the pentacle,  is represented with the single point of the star pointing up, however, I am reliably informed that the inverted (two points up) pentacle is NOT  to be confused with dark practices, as we have been led to believe.

The inverted pentacle  is a sign of inner workings to better the world, rather then the single point up, which means working from the outside in.

The pentacle is usually a flat piece of metal or wood inscribed with a pentagram, a five-pointed star.

The pentacle came from ceremonial magic and has been used in ritual and magick for thousands of years. It is used to represent feminine energy - the sacred feminine - and to consecrate objects such as amulets and charms. The pentacle is also a traditional symbol of protection and is one of the official symbols of a witch.

The pentacle is the tool of the North and is associated with Earth.

The pentacle is feminine in nature and represents the Goddess.

If you feel uncomfortable with using a pentacle because of the misconceptions others may have, use a stone instead. Only you need know what meaning it really has.