I didn’t say the new spinel was given to pink by fireworks and iridescence?
It was just a guess.
So... that's a no?
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I didn’t say the new spinel was given to pink by fireworks and iridescence?
It was just a guess.
So... that's a no?

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Why does rainbow feel like Moore a gem that iridescence would’ve made?
Rainbow is far more aware of how much each Gem is their own Unique Individual with their own Unique Lives then Pink ever knew until long after she became Rose Quartz. She is a former Human with a Diamond's Body trying to think like a Gem with her Human oriented mind.
Pink throw tantrums and fits to get her way like the spoiled Imperial Princess she was. She screamed, cried, and raged first for attention then over the unfairness of her treatment. But she never bothered to sit down with the other Diamonds and calmly explain WHY she did the things she did, and when she DID try communicating clearly for the first time the others shut her down. So Pink gave up trying to reason with them and fully committed to the Rebellion rather then finding another way.
Rainbow, on the other hand, already knows from the beginning how important Clear Communication and Boundaries is in a health relationship of any kind. She seems so mature to everyone else she meets because they all expected her to be Pink Diamond 2.0, whether they had met Pink personally or had only heard the stories, EVERYONE and their Kindergartener knows about Pink's legendary bratty temper. Rainbow speaks her mind relatively freely like Pink used too, but she also explains WHY she thinks that way to the best of her ability the majority of the time. It's one of the main character traits that set Rainbow and Pink apart.
Rainbow would absolutely have been better off on Homestead if the AU existed in the same Universe though. She shares far more of her values with Iridescent and Firework Diamond then she does with the Canon Diamonds and even Steven.
Rainbow is Pro-Colonization while also being Pro- Organic Life like Homestead. She think that when colonizing Organic Worlds there should be Zoos and Large Nature Reserves made on and off planet to preserve the local Organic Lifeforms while properly Colonizing the rest of the planet.
I have a fun idea for you
Make a gem based off of this 
Not corrupted tho
Unakite
Welcome Unakite! Based on the Pink-Spotted Fruit Dove.
Unakites are either fashion focused Gems and/or Researchers who study Organic Lifeforms with capability of flying to assess their threat level towards future Colonization effects.
Have you checked how much power rainbow would actually due to the energy behind the star responsible for her birth
The Diamonds in my AU are made from an extremely rare type of Star called Diamond Stars by the Empire. Diamonds typically incubate for millions- sometimes billions of years! They're basically living Goddesses after all, with the power to match.
Homeworld's Solar System originally had 6 Stars and 20 planets. Diamond Stars pull in and consume Astral Bodies near them before attempting to go Supernova, and if the Diamond's incubation is successful the Diamond with consume the Star whole just before it turns into a Black Hole and emerge.
White consumed 3 planets, an asteroid belt, and 3 dwarf planets. Yellow consumed 2 planets and 1 dwarf planet. Blue consumed 1 planet and 2 dwarf planets. While Pink consumed 3 planets, the systems second asteroid belt, and 4 dwarf planets.
Rainbow, by comparison, consumed 18 planets, 2 asteroid belts, and 9 dwarf planets because she had an entire single Star Solar System to herself that wasn't competing with the gravitational pull of other Stars like in Homeworld's Solar System.
Rainbow basically has the power of 6 Diamonds and would be significantly taller then White had she not been intentionally made to be Pink Diamond's height.
White Diamond emerged first 6 billion years ago. Yellow Diamond and Blue Diamond come next around 4.5 billion years ago with Yellow being a few million years older then Blue. While Pink Diamond emerged 3 billion years ago.
Rainbow, on the other hand, only incubated for about 1,500 years. Because her Gem was already formed and superchargered with energy by Pink, Rainbow just needed to be put back together and be given a soul, mind, emotions, and physical form.
Pink was meant to emerged around the same time as Yellow and Blue, and was expected to be a Red Diamond that was as tall as White. But that obviously didn't happen and that disappointment did effect how they treated her, however it was Pink's actions that caused the way they treated her to become the norm.
It’s not really important, but
Iridescence has armor
She doesn’t really need it
But she likes the aesthetic and sometimes she will walk around in it on Homestead 
It works like practical armor though
I'd love to see art of it some day!
This is a design I made of potential Armor for Rainbow Diamond.

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Yeah, iridescence with them immediately get on ass about the outfit being….Ummm
White diamond but somehow worse
She would recommend a kimono or another full body covering robe until she can be trusted to make her own outfits
White designed most of Rainbow's Form actually. She wanted Pink to emerge Perfectly, to look like a Leader and not a Child or Clown as she had before. And Obviously White's definition of Perfection is Herself, so she modeled "Pink's" new form after herself.
White designed her to have a brilliant short cape down to her knees in the same style as White's (but obviously pink), Pink's old gloves, normal short sleeves instead of her old shoulder pads, simmering pink tights, and glittering sandals to go along with her leotard and glimmering skirt. But Rainbow's Gem didn't like that so it scraped them. Pink Diamond personally made that Gem after all and Pink hated anything to do with White Diamond.
This is a reply I made to a Comment on my fic that asked why Rainbow's Gem is shaped like a Heart and not a Diamond.
'While the Facets are different then the Original Blank Pink Diamond that Rose made, the Gem she made and shattered was heart shaped in this AU. Rose subconsciously made it to represented her Love for Life, her Desire for Change, her Desperation for Freedom, her Longing to Fix her Past Mistakes, her Stubborn Will, and her Hope for her new Future. A Heart is Will, Love, Hate, Desire, Longing, Desperation, Change, and HOPE. Along with many other things.' ~ Chapter 6 Comments Section of "Forged Anew" on Ao3.
I’m gonna share with you a random idea I had once
Mosa(Mosasaurus)Diamond, Quetzal( Quetzalcoatlus)Diamond and Tyranno(Tyrannosaurus)Diamond
And Baobab Diamond(type of 0ld Tree)
Paleo Diamond
Paleo Diamond - The Diamond who lives for the past. Paleo is obsessed with the past, especially extinct Organic Lifeforms. Most of her Court is filled with Organic based Gems like Ambers, Fossils, and Sapphires with Past Vision. Paleo has the power to reanimate Organic Lifeforms, both like Pink and like a necromancer controlling a dinosaur skeleton, and Past Vision.
Personally, I honestly didn’t know how to feel about your diamonds because
I’ve gotten used to people, drawing diamonds in fantastical that something simple didn’t really cross my mind as Diamond like
But honestly, I dig it
Also, is her story really that she a replacement for pink
Because I feel like our diamonds would immediately just jump in and take her to their Homestead
And raise her proper 
Rainbow Diamond was made in the core of a White Star from the Harvested Shards of Pink Diamond. Rainbow is technically a White Diamond with more natural Brilliance and "fire" then White.
Yes, white (colorless) and pink diamonds are chemically identical, as both are composed of nearly 100% pure carbon arranged in a cubic crystal lattice. The pink color does not come from foreign impurities, but rather from a rare distortion in the crystal structure caused by intense heat and pressure, known as "plastic deformation". ~Quote from Google
Rainbow is made by White in an attempt to being back Pink, but obviously no one knows the Shards aren't really Pink's. And are instead made by Pink using the carbon and diamond minerals in the dirt to create a second Pink Diamond that Pink shattered to uses as decoy Shards. A blank Pink Diamond charged with Pink's Life Giving Essence, but lacking a mind, emotions, or physical form.