well, here we have a total one-off; I never do this style of circlet crown. But I did. This once. The chains are adjustable for different size heads, the solid part I cut from an old silverplated platter, with the focal point cut far enough into the middle to catch some of the endemic engraving.
A while back, I saw a painting of Diana, in which she was wearing a crown that was also a set of horns. I loved it. Folks had been asking for tiaras and crowns for years, and all the sudden, I wanted to make them. So I began making them. That's the whole story.
These crowns are flexible. They can be bent in a little and be worn a bit forward to stand up more, or bent a little out and be worn more as a headband. Will fit pretty much all adult heads. Not intended as a toy for children.