The untold story could be about their origin. Maybe the diamond crown was once worn by a forgotten queen and the black diamond has some sort of mysterious power. It could also be about how they were lost and found throughout history.
Steven is often paired with Black Diamond in fanfiction. Their interactions can be really interesting as Steven has his unique way of approaching Gems and his powers. He might try to understand Black Diamond or even persuade her to change her ways if she's portrayed as a more antagonistic figure.
I don't know who the author of the 'black diamond novel' is. There are so many novels out there and without more information it's impossible to determine the author.
In a more adventurous 'Black diamond in white crown story', a group of thieves might be after the white crown with the black diamond. They plan an elaborate heist to steal it from a heavily guarded museum. The black diamond in the white crown is so valuable that it could make them rich beyond their wildest dreams.
In some adventure stories, a black diamond might be a magical or cursed item. Maybe it has special powers that the characters are either trying to harness or destroy.
The 'Black Diamond Story' could potentially be a tale centered around a black diamond. Maybe it's a story of discovery, where someone stumbles upon this unique diamond in an unexpected place, like a deep, forgotten mine. It could also be about the people whose lives are affected by this diamond, such as jewelers, collectors, or thieves who might be after it for its value.
In fanfiction, Black Diamond's story can be used to explore themes like redemption and forgiveness. If she was once a tyrant, her journey towards becoming a better being can be a powerful narrative. It can also show how the other characters in the Steven Universe world react to her change, whether they are skeptical or accepting. This can create interesting character dynamics.
In Steven Universe fanfiction, Black Diamond is often depicted as a very powerful and mysterious character. Some fanfictions might explore her past, her relationship with the other Diamonds, and how she might interact with the main characters like Steven. For example, she could be portrayed as a reformed villain who is trying to make amends for her past actions.
Since I don't know the specific 'Black Diamond Story', I can't say for sure who the main characters are. They could be jewelers, thieves, or adventurers.
Well, without more context, it's difficult to tell the exact 'Black Diamond Dragon Story'. However, it could potentially involve a dragon that is associated with black diamonds in some way. For example, perhaps the dragon was born from a black diamond or has the ability to create black diamonds. It could also be a story that is part of a larger fantasy world where different species interact with this unique black diamond dragon.