Diamond Swirkle

 Diamond Swirkle (ダイヤモンドスワークル Daiyamondo Suwākuru) is Cure Diamond's third attack, and was first used in episode 34. She needs the Magical Lovely Pad and a Cure Loveads to perform it.

Description
Cure Diamond inserts the Cure Loveads onto the Magical Lovely Pad and a puddle of water appears under the enemy. Cure Diamond flips her hair and blows a kiss, the light from her fingers taking the form of a blue diamond. She then waves her hand over the Lovely Pad, and blue sparkles appear around the Lovely Pad. Cure Diamond then begins moving her hand over the Lovely Pad in a circular formation, causing the puddle of water to spin, subsequently forcing the enemy to spin rapidly. Cure Diamond continues to move her hand over the Lovely Pad, and a spiraling tornado of water surrounds the enemy.

Japanese
Cure Diamond: ダイヤモンドスワークル!

Romanization
Cure Diamond: Daiyamondo Suwaakuru!

English
Cure Diamond: Diamond Swirkle!

Trivia

 * Similar to the first Doki Doki! Pretty Cure attacks, Diamond Swirkle does not use "Pretty Cure" in the incantation.
 * As of this attack's debut, Cure Diamond is the third blue Cure to have liquid water-based powers, following Cure Aqua and Cure Marine.
 * She is the fourth Cure to have water-based powers overall, after Cure Aqua, Cure Marine, and Cure Beauty (as ice is simply water in its solid state).