The third photo on the right in the second row looks like a costume crown. Considering how theatrical Queen Elisabeth and Queen Marie both were, it wouldn't surprise me if this was fancy dress. Now that I think of it, I feel like I've seen a photo of Princess Elisabeta (Marie's daughter, future queen of Greece) wearing a crown much like that as a child in one of Queen Marie's theatrical photo sessions.
--Previous Message-- : I know that Queen Marie inhereted the Pearl : and Diamond Tiara ( which I think is the : most beautiful of her) from Queen Elizabeth : : : But I discovered other tiaras of Carmen : Silva and I do not know what happened whith : them?.In fact was a testament of the queen : when she died in 1916? : : : : : The last I do not know if it is a tiara : : : :