Hishikawa Rikka
菱川 六花 Hishikawa Rikka
SeasonDoki Doki! Pretty Cure
Eye ColorDark Blue (Rikka)
Blue (Diamond)
Hair ColorNavy (Rikka)
Blue Indigo (Diamond)
Home PlaceOogai Town
RelativesHishikawa Ryoko (mother),
Hishikawa Yuuzou (father)
First AppearanceDDPC01(Rikka)
DDPC03(Cure Diamond)
Alter EgoCure Diamond
Glitter Diamond (English Dub)
Theme ColorBlue (main)
White (sub)
Japanese Voice ActorKotobuki Minako
English Voice ActorCassandra Lee Morris

Hishikawa Rikka (菱川 六花 Hishikawa Rikka?) (or Rachel in the English Dub Glitter Force Doki Doki) is one of the main Cures in Doki Doki! Pretty Cure. She is one of Mana's childhood friends and the secretary of Oogai First Middle School's student council. Her Cure alter ego is Cure Diamond (キュアダイヤモンド Kyua Daiyamondo?), or Glitter Diamond in the Glitter Force Doki Doki dub.


Rikka has navy eyes and darker colored hair worn loose with a small braid, one on each side of her head pulled back and held together at the center. Her bangs are kept short with two thin forelocks that reach her chest. Her casual outfit is a light blue pleat dress with blue accenting and white frills, worn over a white blouse that has a navy bow-tie. She wears plain brown shoes with dark blue socks. In summer she switches to a white tunic reminiscent of a light blue sailor top that has a sapphire ribbon at the chest to match the light blue diamond pattern tracing the bottom. It is worn with a pale blue pleat skirt, blue shoes, and white socks. She sometimes wears red glasses.

As Cure Diamond, Rikka's eyes become brighter while her hair grows in length and turns pale indigo. Her hair is worn in a thick, high ponytail with a curl on the end to match the four separate curls hanging from it, two of which are thicker than the others. Her bangs are brushed neatly and she gains two more forelocks. She wears blue diamond shaped earrings a small, ice-blue brim on her head, lined in dark blue to match the diamond in the center, lined with feathery white material. Her ice-blue dress appears shorter in front than the back with a pale blue feathery material around the bottom of the skirt and the shoulders. Around the torso is dark blue and white lining, along with a dark blue heart-shaped ornament attached to a white border and cloth, along with a light blue bow sewn to the right. Her skirt is shaped to reveal a layered skirt beneath it. With dark blue short-like pants underneath. Comes with white shoes with a loose, pale blue cuff and a thin yellow band around the ankle, where a small white flap is located. On each wrist is a yellow bracelet to match her choker.  On her right side, hangs her Lovely Commune.


Rikka is a quiet, honest, blunt, not afraid to speak her mind and a very intelligent girl. She is a second year student at Oogai First Middle School, and the student council's secretary. She loves to study, and is a genius at it, being one of the Top 10 scorers in the national trial exams. She is great at observing people and situations. As noted by Mana in episode 9, Rikka is at the top of the class and constantly placed as the first place in her school, however her scores started to drop as she was in second place because of starting to play competitive karuta, as it was seen in episode 14.

Rikka is childhood friends with Mana, since they live near each other. Ever since they were children, Rikka has been taking on the responsibility of looking after the troublemaker Mana, sometimes being taken advantage of. Despite that, she also was always protected by Mana which makes Rikka trust her. She strives to lead a quiet school life, but is often dragged into various things by Mana.


Rikka is Mana's best friend and they have known each other since elementary school. She always tries to stop Mana from overdoing things but cannot seem to do so. Her mother works late at a local hospital and her father travels the world as an Photographer. Rikka finds out about Pretty Cure when Mana decides to tell her because it is hard for her to keep a secret from her best friend. She later runs into the mysterious merchant who gives her a Cure Lovead that she later decides to use to help her friend as Cure Diamond.


Aida Mana: Mana is one of Rikka's very close childhood friends and current schoolmate.

Yotsuba Alice: Alice is another one of Rikka's childhood friends, as they met in elementary school.

Kenzaki Makoto: Makoto is one of her Pretty Cure teammates. Rikka used to be jealous of Makoto spending time with Mana, but Makoto comforts her, telling not to worry, making her feel much better. They are shown to be good friends.

Raquel: Raquel is Rikka's transformation partner who helps her transform into Cure Diamond.

Hishikawa Ryoko: Rikka's mother, who appears as a doctor who is always late.

Hishikawa Yuuzou: Rikka's father, who appears as a professional photographer, and often travels a lot.

Aguri Madoka: She and other Cures met her during the battle with Regina. 

Ira: They are rivals. She took him in and looked after him in episode 26 and went against Cure Ace to protect him.

Cure Diamond

DDPC Cure Diamond Pose
"The light of Wisdom! Cure Diamond!!"
Eichi no Hikari! Kyua Daiyamondo!!

Cure Diamond (キュアダイヤモンド Kyua Daiyamondo?) is Rikka's Pretty Cure alter ego. She represents wisdom.


ドキドキ!プリキュア キュアダイヤモンド変身シーン DokiDoki! Precure 02-0

ドキドキ!プリキュア キュアダイヤモンド変身シーン DokiDoki! Precure 02-0

Cure Diamond's transformation and introduction.

Raquel cries out his name before Rikka first places her transformation Cure Lovead onto Raquel's silver heart medallion object and shouts "Pretty Cure Love Link!". She then spells "L-O-V-E" on her Lovely Commune and the transformation begins. She is seen floating around with her body, except for her head, glowing with blue light.  First, her hair glows blue and grows into a long ponytail. Her hair then turns to a lighter blue and her hair accessories and diamond shaped earrings start to appear. Her dress then appears and her Lovely Commune attaches itself to it. Next is her heart brooch, bracelets and boots. Finally her dress ribbon appears on her pelvis and Cure Diamond poses saying her introduction speech.


Twinkle Diamond - is Cure Diamond's main attack, with the incantation "Sparkle! Twinkle Diamond!" (煌めきなさい!トゥインクルダイヤモンド! "Kiramekinasai! Tuinkuru Daiyamondo!"?). In Glitter Force Doki Doki, it is "Shine on! Twinkle Diamond!" Cure Diamond activates her attack with the Lovely Commune. It then blinks twice and she points her finger towards the foe, releasing a flurry of blue diamond-shaped energy beams. With this attack, she can also freeze enemies.

Diamond Shower - is Cure Diamond secondary individual attack that appears in episode 11, firstly, she summon the Love Heart Arrow and sets the Diamond Arrow Lovead within the middle of the heart, then it shines, she takes the arrow and she taps her arrow a couple of times releasing, a big wave a diamonds.

Diamond Swirkle - is Cure Diamond's third individual attack performed with Magical Lovely Pad.

Diamond Blizzard - is Cure Diamond's fourth individual attack. It looks like an upgraded version of Diamond Shower and Raquel says the incantation with her. After she uses this attack, she is encased in a diamond-shaped block of ice.


Cure Diamond Power Up

Cure Diamond Power Up

Like her Cure partners, she can use Power Ups when she takes it seriously in the battle, when this happens, a blue light appears around her body.


Hishikawa (菱川?)Hishi (菱) means "a diamond shape", while kawa (川) means "river".

Rikka (六花?): The kanji Rikka (六花) means "snow". Individually, Ri (六) means "six" while ka (花) means "flower".

Her dub name Rachel comes from the Hebrew and means "ewe" or "one with purity".[1]


Rikka's voice actor, Kotobuki Minako, has participated in several image songs for the character she voices. Many of them include duets with Nabatame Hitomi, who voices Aida Mana, Fuchigami Mai, who voices Yotsuba Alice, Miyamoto Kanako, who voices Kenzaki Makoto, and Kugimiya Rie, who voices Madoka Aguri.


  • Summer's Meteor Shower (Along with Nabatame Hitomi)
  • Treasure (Along with Nabatame Hitomi and Fuchigami Mai)
  • Beyond The Sky (Along with Nabatame Hitomi, Fuchigami Mai, Miyamoto Kanako, Kugimiya Rie, Yoshida Hitomi and Kurosawa Tomoyo)



Main page: Hishikawa Rikka/Image Gallery


VTEDoki Doki! Pretty Cure characters
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