Princess Royal Blue
Princess Royal Blue is a G1 Earth Pony. She is also a Princess Pony. Her UK name is Princess Sapphire.
- Pose: Quackers Pose
- Body Colour: Blue
- Hair Colour: Pink with pink tinsel
- Eye Colour: Pale blue
- Symbol: Pink crescent moon-shaped medallion with green jewel
Note: These stories are reproduced exactly as they appear on the ponies' backcards, including all errors.
The Baby Ponies huddled in their cribs as heavy rain and crackling thunder rumbled outside. Royal Blue knew the storm would frighten the babies, so she quickly thought of a plan to soothe them. She raced through the grey clouds and gusty winds to where the babies wiggled under the covers. "No need to be afraid," Royal Blue laughed. She told them a bedtime story about a faraway land she once visited, and gave each of them a steaming cup of warm milk. Then they had a rough and tumble pillow fight. The babies soon forgot about the storm and crawled wearily into bed. Soon they were fast asleep, dreaming happy dreams.
Animated Pony Stats
- Body Colour: Blue
- Hair Colour: Red
- Eye Colour: Pink
- Symbol: Red and white crescent moon-shaped flounce
Princess Royal Blue appeared in one story arc of the My Little Pony 'n Friends TV series, "The Quest of the Princess Ponies". Her magic wand was able to summon cold based weather effects such as hail and snow.
German Princess Royal Blue
- pat pend removed, coral/peach hair, dark pink tinsel 
Princess Royal Blue was sold under the name Princess Sapphire in the UK, while the pony was the same as the US release the accessories were different, most notably she came with a Baby Dragon rather than a Bushwoolie.
UK Backcard Story
Princess Sapphire is the wisest of all the Princess Ponies. She is always able to advise te others if they have a problem. Because she is the wisest Princess she has the youngest dragon, Smokey, as her attendant. Smokey doesn't always get things quite right, but Princess Sapphire is always patient with him because she knows he always tries his best.
Princess Sapphire Variant I
- Blue tail with pink tinsel/no medallion
This is a UK variant of Princess Sapphire with a blue tail with pink tinsel. She has a translucent yellow crescent moon with a green 'jewel' centre on her rump instead of the metallic medallion seen on 'regular' Princess Ponies.
Princess Sapphire Variant II
- Glow-in-the-dark green mane and turquoise tail/white symbol
This is a UK variant of Princess Sapphire with a glow-in-the-dark green mane, and a turquoise tail. She has a white crescent moon with a goldish jewel as her symbol.