Yanashi Kira:

Yanashi Kira (優しキラ) is one of the main Cures in ''Diamond Precure!. ''Her Alter ego is Cure Topaz (キュアトパーズ). Her catchphrase is "Hope・Step・Juump" (「ホープ・ステップ・ジャーンプ！」)

Personality
She is generous and kind. She hates when someone is attacking innocent people. She was loved by almost everyone. She is strong and courageous because she was not afraid of fighting alone against Revenge Zone.

Cure Topaz
The yellow heart of the kindness, Cure Topaz!"

優しさの黄色のハート ,キュアトパーズ

Yasashi-sa no kiiro no hāto,kyua Topāzu!

Cure Topaz (キュアトパーズ) is Kira's alter ego. She transforms using the phrase "Precure Diamond Power". She represents the Hope and the Kindness.

Transformation
Pety gets up and shouts "Heart PreCure! Let's go" And she sends Diamond Brooch to the heart of Topaz who holds it with her hands then by turning she shouts "Precure Diamond Power … Let 's Go". Yellow Ribbon appears and surround all her body Then, Pety sends small Yellow heart to her dress, her shoes and her palms. Every Time a heart touch a part of her body, this part forms the dress, the palms, the shoes and hair. Kira opens her eyes and comes down by carrying Pety in her arms. She puts her hands (heart-shaped) near her heart and begins her introduction.

Elegant Topaz
The precious Heart of Hope, Elegant Topaz!

希望の貴重な心、エレガントなトパーズ

Kibō no kichōna kokoro,Eregantona topāzu

Having received the Crystal Heart, She can transform into Super Elegant Form. With this form, she can perform the "Yellow Heart Crystal". .And With the other Cures in their Super Elegant Form, they can perform the group attack called "Rainbow Heart Crystal"

Etymology
Yanashi (優し) Yanashi (優し) means "kindness"

Kira (キラ) It is derived from KiraKira (キラキラ) which means "Glitter"