headpiece
A decorative type of headwear that is fitted around one's head (usually being fitted near/on the forehead) and doesn't fit the traditional definition of a crown, tiara, hairband, et cetera. A headpiece can be worn with a hat though is usually shown being worn on its own. Headpieces are usually depicted as jewelry, though it can be made out of nearly anything such as cloth, machinery, and so forth.
Jeanne d'Arc from Fate and Yomi from Puzzle & Dragons are good examples of characters that wear a headpiece.
See Also
一种装饰性的头饰，安装在一个人的头上（通常在额头附近/额头上安装），并且不符合传统的皇冠，头饰，发带等的定义。可以戴上帽子的头饰，尽管通常显示出自己戴。头饰通常被描述为珠宝，尽管它几乎可以用布，机械等等。
来自Fate的Jeanne d'Arc和Puzzle＆Dragons的Yomi是戴头饰的角色的好例子。
来自Fate的Jeanne d'Arc和Puzzle＆Dragons的Yomi是戴头饰的角色的好例子。