Suri meets Rarity when she's the last to arrive with her dresses at Prim Hemline's rehearsal. She is stated to have met Rarity before at a Ponyville knitting competition, although Rarity at first cannot put a name to her face. While backstage with Rarity, she takes a look at Rarity's dresses, complimenting her on her designs. Appreciating the material Rarity used to make the dresses, Suri asks Rarity for a swatch of the fabric to fix up some of her own dresses. Rarity happily obliges and hands her an entire spool of fabric.
The next day, Rarity is again last to show up to the event. As Rarity peeks onto the stage, she sees Suri having her dresses judged by Prim Hemline. She then notices that Suri had completely duplicated her designs overnight, using the same fabric that she used. When confronted by Rarity about this, Suri explains that "it's everypony for herself in the big city".
When Rarity later rushes back to the plaza to thank Prim for the opportunity, Suri and Coco tell Rarity that Prim is "furious" and that she should stay away from her for a while. Once Rarity's friends turn up, it is revealed that Suri also told them that Rarity lost the competition. After Rarity accepts the defeat and leaves with her friends to see , it is revealed that Suri lied to Rarity and her friends about the competition's outcome and that Rarity had indeed won. Coco quit being her assistant and gave the trophy to Rarity.
In Suri Polomare's Revenge
Suri Polomare returns in the movie: Suri Polomare's revenge. And she is also competing in the Manehatten "Designer of the Year" show. She's also forced Coco Pommel to work for her again. [with a little persasiveness] She's also hired Brittany and Whittany Biskit.
- She is a rival to James, because she stole Rarity's designs.
- Suri is rumored to be Diamond Tiara's mother. But it is unknown at this point.
- Suri returns to geet her revenge on Rarity in the movie: Suri Polomare's revenge, and she forces Coco to return working for her. It also shows that she has her own privite train
- Suri will encounter Code Red in Code Red's Adventures of X-Men the Last Stand.