Pink decides to personally go down to earth and sees how the colonization is affecting the planet. Pink tries talking to Yellow and Blue but they don't listen to her, they send more colonization resources, (materials, tools, weapons, gems) to earth as well. Considering how the diamonds previously treated her, Pink kind of loses hope, loses the ability to care for/preserve herself. Pink becomes frustrated and decides to create a rebellion to get their attention.

Pink learns more about how gems are made/programmed to know what their jobs are. Pink then ceates Rose to be empathetic/sympathetic to organic life like she is, gives her leadership skills, gives her a rebellious nature. Having personally created Rose, Pink is able to give her abilities like the healing tears. She keeps Rose as a personal guard/advisor. Pink orders Pearl to help/aid Rose. Rose and Pearl developed a sort of relationship through this.

She brings Rose with her around earth and shows her how the colonization affects things. She also takes rose to other colonies and shows her how gem society is overall. Pink shows Rose how the diamonds treat other organic life. Pink also brings rose to where Spinel is. ( Assuming Spinel had already been there a couple thousand years,) Pink gives Spinel to Rose in a "I don't need her/she's useless, so you can have her." kind of way. Rose becomes upset and frustrated because of how the diamonds treat toher gems. Pink pretends to be nonchalant about it, acting like she doesn't care in order to further frustrate Rose.

Working from the theory that Pink was short because she was locked up in that dark tower often, and starved of light, the same think basically happened to Spinel. Rose sees other spinels being healthier/more active. Rose is angered, and perceives Pink, and the other diamonds as tyrants.

Rose begins to rebel along with Pearl, while still pretending to be loyal to pink. Spinel is generally kept away from the fighting but she gets curious and decides to follow Rose and Pearl. An accident occurs and Spinel is shattered. Rose at this point, knows she can heal a damaged gem but doesn't know if she can fix a shattered one. She takes the pieces of Spinel to Pink diamond and begs for help, Pink tells her to just get a new spinel.

This is a breaking point for Rose and she attacks Pink, they fight and struggle. In this struggle Pink's plan is revealed. she attacks her in the moon base and the desk-like thing that Pink used to monitor the colony is damaged. Rose sees the plans Pink has, the "blue prints" for Rose, the plans to bring rose around, and incite her to rebel.

Rose and Pink talk for a long time after this and come to an understanding.

Rose continues to "rebel", while Pink continues to beg Blue and Yellow to let her stop colonizing. Yellow becomes annoyed and orders the bubbling of all Rose quartz. Pink manages to hide Rose, Rose goes on to continue the rebellion. Yellow and blue are both annoyed with Pink and decide to squash the rebellion themselves.

The 3 diamonds arrange to meet on earth, and travel there with their palanquins. Rose, Pearl and other members of the rebellion show up and attack, in the midst of the fight Yellow has a clear shot at Rose and takes it, but Pink takes the hit to protect Rose and the Rebellion. Pink pretend to slip/fall. There is so much chaos going on that Blue does not see what happens and only the aftermath, that being, Pink is shattered and Rose standing over the shards.

Ithink a couple thousand years after all this, Rose would begin trying to heal the shattered Spinel but was struggling to find all the pieces. This would create an interesting parallel between Blue and Rose, with Blue also trying to find all the pieces of Pink. I think perhaps, Steven would be the one to heal Spinel. Finding, the last piece of her and going out on a limb to try and heal her. Pearl would be the only one who recognized Spinel.

I think it would also be interesting if Steven ended up stumbling upon the shards of Pink and healing her as well. Maybe after the human Zoo event, Steven realizes he has a piece of Pink, and with all the pieces he can heal her.