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The Greg Authority
Fandom: Steven Universe Future
Created: 6/15/2026
Tags
AU (Alternate Universe)FantasyScience FictionAdventureSpace OperaJealousyDivergenceHumor
Ultra-Violet Royalty
The sun hadn't quite cleared the horizon of Mask Island when Greg Universe woke up. The interior of the van smelled of old upholstery, salt air, and a lingering scent of motor oil—the familiar smells of a life lived on his own terms. He sat up, his back popping in a way that reminded him he wasn't twenty anymore, and reached for the rearview mirror to check if his hair had finally decided to stage a full-scale retreat overnight.
But it wasn't his hairline that made him freeze.
Greg leaned in closer, his breath fogging the glass. He rubbed the surface with his palm and stared. His eyes, usually a soft, approachable brown, were different. The pupils had narrowed and sharpened, losing their circular shape. Instead, they were hard-edged, four-pointed rhombs. They were diamonds. And they weren't the pink of Rose’s or the white of the Mother-of-all-Gems; they were a deep, electric shade of royal purple.
"Whoa," Greg whispered, his voice cracking. "Is this… is this a vision? Am I having a stroke? No, I feel fine. I feel… actually, I feel like I could lift the van over my head."
He scrambled to look at his hands, expecting them to be turning into light, but he saw something else. On his right forearm, just below the elbow, sat a gemstone. It was flush against his skin, a multifaceted violet jewel that seemed to glow with an inner, rhythmic pulse. It looked like it had always been there, yet Greg knew for a fact it hadn't been there when he fell asleep.
The van door slid open with a sharp *clack-shhh*.
"Dad! You awake? I brought breakfast—" Steven stopped mid-sentence. He wasn't alone. Standing behind him was a Gem Greg had never seen before. She was tall and slender, with skin the color of a twilight sky and hair swept back into a sleek, translucent bob. She wore a high-collared tunic with a sheer cape that shimmered like oil on water.
The moment the stranger’s eyes landed on Greg, she gasped. It was a sound of pure, unadulterated devotion.
"My Diamond," she breathed.
She didn't just bow. She snapped her arms together in the sharp, angular diamond salute Greg had seen the Homeworld gems use, her hands forming a perfect rhombus over her chest.
"I have searched for eons," she whispered, her voice trembling with emotion. "The Great Purple Diamond. The lost sovereign of the Ultraviolet Court. You have returned to us."
"Whoa, hey now!" Greg scrambled back into the pile of sleeping bags, accidentally kicking a spare tire. "I’m just Greg! Steven, what’s going on? Who is she? Why am I… glowing?"
Steven looked between his father and the Lavender Pearl, his own eyes wide with a mixture of confusion and protective instinct. "I found her wandering near the Warp Pad, Dad. She kept saying she was looking for a 'lost frequency.' But Dad… your eyes."
Steven reached out, his hand trembling as he grabbed Greg’s forearm. He stared at the violet gem embedded in the flesh. "This is… this shouldn't be possible. Come on, we have to get to the house. Now!"
Steven didn't wait for an answer. He hauled Greg out of the van. The Lavender Pearl followed two paces behind, her movements fluid and silent, her eyes never leaving Greg’s back.
They sprinted across the sand toward the beach house. Greg felt a strange surge of energy with every step, his boots barely touching the ground. It was like the gravity of Earth had suddenly decided to give him a break.
They burst through the front door, nearly knocking over a pile of Steven’s laundry. Garnet, Amethyst, and Pearl were huddled around the kitchen table, discussing the recent influx of gems to Little School. They all looked up at once, and the silence that followed was heavy enough to sink a ship.
Amethyst dropped her sandwich. "Uh, Greg? You’ve got a little something on your… everything."
Pearl’s hands flew to her mouth. "A Purple Diamond? But that’s impossible! The records of the Ultraviolet Court were erased during the Era One expansions! They were thought to be a myth, a discarded prototype of the Diamond essence!"
Garnet stepped forward, her three eyes fixed on Greg. She adjusted her visors, her expression uncharacteristically strained. "I see it now. The paths have shifted. Greg, you aren't just a human who happened to fall in love with a Diamond. You are a hybrid, just like Steven. But your lineage… it was dormant. Buried beneath generations of human DNA until the resonance of Steven’s own Diamond powers woke it up."
"Wait, wait," Greg said, waving his hands. "You’re saying I’m a Diamond? Like, for real? I’m a king or something?"
"Not a king," Garnet corrected, her voice low. "A Diamond. You are the last descendant of the Purple Diamond line. The power you inherit isn't just a gift; it’s a fundamental force of the universe."
The Lavender Pearl stepped forward, bypassing the Crystal Gems as if they were nothing more than common pebbles. She took Greg’s hand, her touch cool and firm. "My Diamond, you cannot stay in these… primitive rags. The Ultraviolet Court must be restored. You must be draped in the silks of your station. We must return to the Spire of Amethyst Light immediately."
"Whoa, hold on, Pearl Number Two!" Greg tried to pull back, but her grip was surprisingly strong. "I’ve got a car wash to run! I can't just go to space because my eyes changed shape!"
"The universe has waited long enough," the Pearl insisted. Her eyes were manic with a thousand years of loneliness. Before anyone could react, she tapped a device on her wrist. A localized warp beam, violet and blinding, enveloped them both.
"Dad!" Steven screamed, lunging forward, but he only caught the fading scent of ozone.
In a flash of light, Greg and the Pearl were gone. The Crystal Gems stood in the living room, stunned into silence.
"We have to go after them," Steven said, his voice shaking. "We don't know who she is or what that court wants with him."
As they scrambled toward the Warp Pad, none of them noticed the air in the center of the room ripple.
Deep within the subconscious realm of the Pink Diamond gemstone—the core of Steven’s being—something was stirring. Pink Diamond, or the remnant of her consciousness that lingered in the light, watched through the windows of Steven’s eyes.
She felt a surge of something she hadn't felt in centuries: jealousy. Pure, searing green envy.
*Greg,* she thought, her form shimmering in the void. *My Greg. A Diamond?*
She felt a strange, twisted thrill. The man she had loved, the man who was so delightfully "small" and "human," was actually her equal. He was royalty. He was one of them. But the sight of that Lavender Pearl touching him, taking him away to a court she had never even been allowed to visit, made her light flicker with rage.
*She won't have him,* Pink whispered to the emptiness. *He belongs to the Earth. He belongs to the legacy I left behind.*
In an unprecedented display of will, Pink’s essence pushed outward. She couldn't take form—not truly—but she could manifest as a ghost, a transparent flicker of light. As the Crystal Gems warped away to track Greg’s signature, Pink followed, a silent, invisible passenger clinging to the slipstream of their travel.
When they arrived at the Ultraviolet Spire—a jagged, floating fortress made of deep purple crystal hanging in the vacuum of a distant nebula—they found Greg standing on a pedestal. The Lavender Pearl was frantically draping him in a heavy, flowing cape of translucent violet fabric that hummed with power.
"I look like a giant grape, Steven!" Greg yelled as his son landed on the platform. "Help me out here!"
"My Diamond, please, the crown is next!" the Pearl chirped, holding up a floating circlet of dark matter.
Pink Diamond’s ghost drifted through the hall. She was invisible to the others, a mere shimmer in the air, but she moved with a predatory grace. She glided onto the pedestal and stood directly behind Greg. She reached out, her transparent arms wrapping around his neck in a phantom embrace. She rested her chin on his shoulder, her eyes narrowed at the Lavender Pearl.
Greg shivered, rubbing his arms. "Is it cold in here? I feel like someone just walked over my grave."
Back at the beach house, the atmosphere was far less regal. Connie had arrived shortly after the warp, finding the house empty save for Lion, who was napping on the porch. When she finally got through to Steven via his gem-com, the explanation left her staring at the ocean in disbelief.
"So," Connie said, rubbing her temples. "Greg is a Diamond. A Purple Diamond. And he’s been kidnapped by a Pearl who wants to dress him up like a space god."
"Pretty much," Steven’s voice crackled through the device. "Garnet is trying to negotiate, but this Pearl keeps saying Dad needs to 'realign the nebula' or something. And Connie… something feels weird. It’s like there’s an extra person here. I keep smelling hibiscus and sawdust."
"Hibiscus?" Connie whispered. "Steven, that’s your mom’s scent."
In the Spire, Pearl (the Crystal Gem one) was pacing a circle around the pedestal. "This makes no sense! The biological probability of a Diamond lineage surviving through human reproduction is astronomical! How did it stay hidden? Why now?"
Garnet stood still, her head tilted. "The Purple Diamond was the Diamond of Intuition and Sound. They were the 'forgotten' frequency. Perhaps the gem didn't manifest because the world wasn't loud enough. But with the change in the Earth’s gem-energy… the frequency finally matched."
Greg looked down at his arm, the violet gem glowing brighter as he felt the invisible weight of Pink’s ghost leaning against him. He didn't know his late partner was there, but he felt a strange sense of comfort amidst the chaos.
"Look," Greg said, his voice booming with a resonance he didn't know he possessed. The Lavender Pearl froze. "I’m flattered. Really. The cape is itchy, but it’s nice. But I’m Greg Universe. I tell bad jokes, I play the guitar, and I live in a van. If I’m a Diamond, then I’m a Diamond who wants a burger and a nap."
The Lavender Pearl looked devastated. "But… the court…"
"The court can wait," Greg said, stepping off the pedestal, the heavy cape trailing behind him. "Steven, let’s go home. I think I need to see if I can still play the guitar with this thing on my arm."
As they headed for the warp, Pink’s ghost lingered for a moment, staring at the Lavender Pearl with a cold, triumphant smile that no one saw. She vanished back into the depths of Steven’s gem, satisfied for now.
But as the warp light took them back to Beach City, the question remained: what did it mean for the Earth to have a Diamond who didn't want a throne, but still possessed the power to shake the stars? And more importantly, how was Greg going to explain this to the neighbors?
But it wasn't his hairline that made him freeze.
Greg leaned in closer, his breath fogging the glass. He rubbed the surface with his palm and stared. His eyes, usually a soft, approachable brown, were different. The pupils had narrowed and sharpened, losing their circular shape. Instead, they were hard-edged, four-pointed rhombs. They were diamonds. And they weren't the pink of Rose’s or the white of the Mother-of-all-Gems; they were a deep, electric shade of royal purple.
"Whoa," Greg whispered, his voice cracking. "Is this… is this a vision? Am I having a stroke? No, I feel fine. I feel… actually, I feel like I could lift the van over my head."
He scrambled to look at his hands, expecting them to be turning into light, but he saw something else. On his right forearm, just below the elbow, sat a gemstone. It was flush against his skin, a multifaceted violet jewel that seemed to glow with an inner, rhythmic pulse. It looked like it had always been there, yet Greg knew for a fact it hadn't been there when he fell asleep.
The van door slid open with a sharp *clack-shhh*.
"Dad! You awake? I brought breakfast—" Steven stopped mid-sentence. He wasn't alone. Standing behind him was a Gem Greg had never seen before. She was tall and slender, with skin the color of a twilight sky and hair swept back into a sleek, translucent bob. She wore a high-collared tunic with a sheer cape that shimmered like oil on water.
The moment the stranger’s eyes landed on Greg, she gasped. It was a sound of pure, unadulterated devotion.
"My Diamond," she breathed.
She didn't just bow. She snapped her arms together in the sharp, angular diamond salute Greg had seen the Homeworld gems use, her hands forming a perfect rhombus over her chest.
"I have searched for eons," she whispered, her voice trembling with emotion. "The Great Purple Diamond. The lost sovereign of the Ultraviolet Court. You have returned to us."
"Whoa, hey now!" Greg scrambled back into the pile of sleeping bags, accidentally kicking a spare tire. "I’m just Greg! Steven, what’s going on? Who is she? Why am I… glowing?"
Steven looked between his father and the Lavender Pearl, his own eyes wide with a mixture of confusion and protective instinct. "I found her wandering near the Warp Pad, Dad. She kept saying she was looking for a 'lost frequency.' But Dad… your eyes."
Steven reached out, his hand trembling as he grabbed Greg’s forearm. He stared at the violet gem embedded in the flesh. "This is… this shouldn't be possible. Come on, we have to get to the house. Now!"
Steven didn't wait for an answer. He hauled Greg out of the van. The Lavender Pearl followed two paces behind, her movements fluid and silent, her eyes never leaving Greg’s back.
They sprinted across the sand toward the beach house. Greg felt a strange surge of energy with every step, his boots barely touching the ground. It was like the gravity of Earth had suddenly decided to give him a break.
They burst through the front door, nearly knocking over a pile of Steven’s laundry. Garnet, Amethyst, and Pearl were huddled around the kitchen table, discussing the recent influx of gems to Little School. They all looked up at once, and the silence that followed was heavy enough to sink a ship.
Amethyst dropped her sandwich. "Uh, Greg? You’ve got a little something on your… everything."
Pearl’s hands flew to her mouth. "A Purple Diamond? But that’s impossible! The records of the Ultraviolet Court were erased during the Era One expansions! They were thought to be a myth, a discarded prototype of the Diamond essence!"
Garnet stepped forward, her three eyes fixed on Greg. She adjusted her visors, her expression uncharacteristically strained. "I see it now. The paths have shifted. Greg, you aren't just a human who happened to fall in love with a Diamond. You are a hybrid, just like Steven. But your lineage… it was dormant. Buried beneath generations of human DNA until the resonance of Steven’s own Diamond powers woke it up."
"Wait, wait," Greg said, waving his hands. "You’re saying I’m a Diamond? Like, for real? I’m a king or something?"
"Not a king," Garnet corrected, her voice low. "A Diamond. You are the last descendant of the Purple Diamond line. The power you inherit isn't just a gift; it’s a fundamental force of the universe."
The Lavender Pearl stepped forward, bypassing the Crystal Gems as if they were nothing more than common pebbles. She took Greg’s hand, her touch cool and firm. "My Diamond, you cannot stay in these… primitive rags. The Ultraviolet Court must be restored. You must be draped in the silks of your station. We must return to the Spire of Amethyst Light immediately."
"Whoa, hold on, Pearl Number Two!" Greg tried to pull back, but her grip was surprisingly strong. "I’ve got a car wash to run! I can't just go to space because my eyes changed shape!"
"The universe has waited long enough," the Pearl insisted. Her eyes were manic with a thousand years of loneliness. Before anyone could react, she tapped a device on her wrist. A localized warp beam, violet and blinding, enveloped them both.
"Dad!" Steven screamed, lunging forward, but he only caught the fading scent of ozone.
In a flash of light, Greg and the Pearl were gone. The Crystal Gems stood in the living room, stunned into silence.
"We have to go after them," Steven said, his voice shaking. "We don't know who she is or what that court wants with him."
As they scrambled toward the Warp Pad, none of them noticed the air in the center of the room ripple.
Deep within the subconscious realm of the Pink Diamond gemstone—the core of Steven’s being—something was stirring. Pink Diamond, or the remnant of her consciousness that lingered in the light, watched through the windows of Steven’s eyes.
She felt a surge of something she hadn't felt in centuries: jealousy. Pure, searing green envy.
*Greg,* she thought, her form shimmering in the void. *My Greg. A Diamond?*
She felt a strange, twisted thrill. The man she had loved, the man who was so delightfully "small" and "human," was actually her equal. He was royalty. He was one of them. But the sight of that Lavender Pearl touching him, taking him away to a court she had never even been allowed to visit, made her light flicker with rage.
*She won't have him,* Pink whispered to the emptiness. *He belongs to the Earth. He belongs to the legacy I left behind.*
In an unprecedented display of will, Pink’s essence pushed outward. She couldn't take form—not truly—but she could manifest as a ghost, a transparent flicker of light. As the Crystal Gems warped away to track Greg’s signature, Pink followed, a silent, invisible passenger clinging to the slipstream of their travel.
When they arrived at the Ultraviolet Spire—a jagged, floating fortress made of deep purple crystal hanging in the vacuum of a distant nebula—they found Greg standing on a pedestal. The Lavender Pearl was frantically draping him in a heavy, flowing cape of translucent violet fabric that hummed with power.
"I look like a giant grape, Steven!" Greg yelled as his son landed on the platform. "Help me out here!"
"My Diamond, please, the crown is next!" the Pearl chirped, holding up a floating circlet of dark matter.
Pink Diamond’s ghost drifted through the hall. She was invisible to the others, a mere shimmer in the air, but she moved with a predatory grace. She glided onto the pedestal and stood directly behind Greg. She reached out, her transparent arms wrapping around his neck in a phantom embrace. She rested her chin on his shoulder, her eyes narrowed at the Lavender Pearl.
Greg shivered, rubbing his arms. "Is it cold in here? I feel like someone just walked over my grave."
Back at the beach house, the atmosphere was far less regal. Connie had arrived shortly after the warp, finding the house empty save for Lion, who was napping on the porch. When she finally got through to Steven via his gem-com, the explanation left her staring at the ocean in disbelief.
"So," Connie said, rubbing her temples. "Greg is a Diamond. A Purple Diamond. And he’s been kidnapped by a Pearl who wants to dress him up like a space god."
"Pretty much," Steven’s voice crackled through the device. "Garnet is trying to negotiate, but this Pearl keeps saying Dad needs to 'realign the nebula' or something. And Connie… something feels weird. It’s like there’s an extra person here. I keep smelling hibiscus and sawdust."
"Hibiscus?" Connie whispered. "Steven, that’s your mom’s scent."
In the Spire, Pearl (the Crystal Gem one) was pacing a circle around the pedestal. "This makes no sense! The biological probability of a Diamond lineage surviving through human reproduction is astronomical! How did it stay hidden? Why now?"
Garnet stood still, her head tilted. "The Purple Diamond was the Diamond of Intuition and Sound. They were the 'forgotten' frequency. Perhaps the gem didn't manifest because the world wasn't loud enough. But with the change in the Earth’s gem-energy… the frequency finally matched."
Greg looked down at his arm, the violet gem glowing brighter as he felt the invisible weight of Pink’s ghost leaning against him. He didn't know his late partner was there, but he felt a strange sense of comfort amidst the chaos.
"Look," Greg said, his voice booming with a resonance he didn't know he possessed. The Lavender Pearl froze. "I’m flattered. Really. The cape is itchy, but it’s nice. But I’m Greg Universe. I tell bad jokes, I play the guitar, and I live in a van. If I’m a Diamond, then I’m a Diamond who wants a burger and a nap."
The Lavender Pearl looked devastated. "But… the court…"
"The court can wait," Greg said, stepping off the pedestal, the heavy cape trailing behind him. "Steven, let’s go home. I think I need to see if I can still play the guitar with this thing on my arm."
As they headed for the warp, Pink’s ghost lingered for a moment, staring at the Lavender Pearl with a cold, triumphant smile that no one saw. She vanished back into the depths of Steven’s gem, satisfied for now.
But as the warp light took them back to Beach City, the question remained: what did it mean for the Earth to have a Diamond who didn't want a throne, but still possessed the power to shake the stars? And more importantly, how was Greg going to explain this to the neighbors?