A tennis bracelet should fit comfortably on your wrist, typically allowing enough room to slide a finger between the bracelet and your skin. It should be snug enough to stay in place without spinning around too much, but loose enough to drape gracefully. The ideal length usually results in the bracelet resting just below the wrist bone when your arm is relaxed. This balance ensures both comfort and security, making the gold tennis bracelet a stylish and practical accessory for everyday wear.