The most popular style of necklace is the pendant necklace. Pendant necklaces are versatile and can be dressed up or down, making them suitable for both casual and formal occasions. Additionally, they come in a variety of styles, including chokers, lariats, and chains, and can be made from a variety of materials, such as gold, silver, and gemstones. Finally, pendant necklaces are often personalized with initials or symbols, making them a popular choice for gifts.