The 20-inch model—which is a great medium size—features a very trendy Cuban link chain design for a bold yet refined aesthetic that looks great when worn over a T-shirt. The necklace is ...

Narrator: Even in the high-end world of jewelry, Cuban link chains are a symbol of luxury. This 18-karat gold chain is worth $27,000. And some of the most valuable chains will cost 10 times that.