Sprite? Making a new character? And fully coloring the sheet, too!? What sorcery is this!?
 
This is Sapphire “Sapphie” Gleam. She’s a unicorn with a special talent for gem excavation and refining. She comes from a small family of three, herself and her parents. Her father is a burly, rough earth pony who works as a miner, and her mother runs a store that sells gems and gem-encrusted jewelry. When she’s older she takes over both jobs, having learned both tricks of the trade from each of her parents. Her and her family live in Fillydelphia, and mine from the Foal Mountains.
 
AB/DL stuff is optional with her. In that universe, she was diapered as a filly at her own request. Between being in the mines and running the shop, Sapphire didn’t see her parents too often, let alone spend time with them. Once they were able to settle down a bit after paying off the store debts, she wanted an open “relationship reset” with them. Being comfortable with their income, her parents agreed and allowed her to be a foal as she pleased with full support.  
Into her adult life, she’s well off from the store’s income. Many hours in the mines and tending to jewelry would convince her to diaper up for extra time on the job. She’s a casual DL pony, with minor AB tendencies. Sapphire isn’t afraid to have her diapers with her when she goes out, but has different diapers for day/in public and night/at home.
 
Sapphire is a very laid back, cheerful and charismatic mare. She enjoys relaxing, exploring the mines, and spending time with others. Most of her time is split between the mines and her shop, but she makes time for herself, her friends and her family. As a filly she’s a very energetic go-getter who doesn’t seem to know the meaning of the word “shame.” As a mare, she’s a lot calmer and more modest.