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.
In 'pink diamond x yellow diamond fanfic', a common theme is the concept of change. How they change over time, either due to external factors or because of their relationship with each other. For example, yellow diamond might become more empathetic because of pink diamond, or vice versa. Another theme is the idea of legacy. Since they are diamonds, their actions and relationships can have a significant impact on their legacy, and this is often explored in fanfics.
To publish comics with Diamond, it's important to understand their publishing requirements. This includes having a well-developed story, professional illustrations, and adhering to their format and style preferences. You also need to submit a detailed proposal outlining your comic's concept, target audience, and marketing plans.
The Ace of Diamond manga has indeed finished. It had a long and engaging journey, and now it's come to an end. Fans can look back on the entire series and enjoy its completeness.
In my opinion, 'Diamond Eye' is likely not a true story. It might draw inspiration from various sources but not be based on actual events. Stories like this often involve creative imagination and storytelling techniques to engage the audience.
I'm not certain. It could be a blend of fact and fiction. Sometimes stories like 'Rough Diamond' take real-life incidents and build a fictional narrative around them.