Do you remember Crystal Valley ? She was one of my pony OC and I redo her !
 
Name: Precious Gem  
Specie: Unicorn  
Cutie mark: two shiny crystals  
Magic colour: Yellow  
Talent: Jeweller
 
She now the child of Radiant Hope and Sombra (fight me) and live at Baltimare as a jeweller and love to make pretty jewels with crystals or precious stones, she can make a really special one for all the ponies!  
She didn’t know about the past of her father, Sombra live hidden in the forest, he had a happy life with Radiant Hope but he’s ashamed by his past so he don’t go out a lot, Precious Gem got a lot of worries about that and go to visit him as soon as she can  
Hes mother is a really good medic and she travel a lot to see the patients