You do realize in this context, it's a Marvel thing.
Because (1) it's mainly known in Marvel continuity and
(2) you're talking about adamantine and
(3)Diana's bracelets have never been made, in any part, of Adamantine ( nor adamantium) ... I've listed what they have been officially made of in the context of the comics.
Whether the name is goofy or not doesn't negate what they were made of in the comics.