What is the difference between necklace and pendant? quora.com

The word “pendant” comes from the Latin and Old French languages both referring to the same meaning “to hang down”. They are considered one of the first in the history of body decorations.In today’s world of sports, medals are given to symbolize victory to athletes. The gold medal is given to the victor of any field, which separates victor from the rest, providing the bearer with fame recognition and status.
Medallion: A coin-shaped piece, worn around the neck or attached to clothing like a brooch.
Locket: A photograph of a loved one or other valuable things were usually held inside. Being close to the heart gave it important symbolism. Lockets are always attached to a chain or a necklace.
Amulet: Amulets were worn to protect the wearer from bad things happening, like evil influences, sicknesses, and other common dangers. Most often amulets were worn around the neck.
Talisman: People used talismans to contain and get supernatural powers.
Functional: These days they can range from utility tools to knife and watches.