Pendant is a hanging piece of jewellery mostly designed by a gemstone and attached to a necklace. Necklace and Pendant are often used together but they are two different items. The history of pendant goes back to the time of Pharaohs in ancient Egypt but in a very different shape than todays.
The golden pendants were found in 17th century and they were in the shape of gold coins and cameos mostly. Pendant and necklace have gone through many transformations and are finally in the shape we see now, which has numerous types and designs with gold, diamond and gemstones.
Some people might confound necklace and pendant; actually, both necklace and pendant are worn around the neck but necklace is the piece that goes around the neck and pendant is the piece attached to necklace. Pendant can be worn on any part of body by hanging on a chain but necklace is only used around the neck.