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Dr. Stone Wiki

Ruby (ルビィ Rubī) is a member of Ishigami Village. She is one of the three Sparkly Sisters along with her siblings Garnet and Sapphire. Her parents are Alabaster and Dia.


Ruby is a young woman with long black hair that she wears in two high ponytails, tied with rope. Her bangs are full and rounded such that they frame her face. Her eyes are large and wide, with visible eyelashes on her upper eyelid. Her eyebrows are hidden by her bangs but appear quite thin. She also has full lips that tend to be in a pouting shape.

Her outfit consists of a short, turquoise-blue dress with a ragged hem. It has no sleeves and is instead held up by a relatively thick piece of rope, tied at the front but leaving a gap for her cleavage.

Unlike her sisters, she does not share a resemblance to her ancestor, Lillian Weinberg, but her hairstyle bears a resemblance to another ancestor, Connie Lee. According to Kohaku, she and her sisters are the prettiest women in the village.[3]


Ruby's main interests are food and finding a man who could provide for her.[4] She has the most practical desire out of the three sisters, as the other two prefer superficial features in men. Thus, she is the most interested in getting to know Senku because of the ramen he introduced to the village.

Abilities and Skills[]

  • Iron Forge Pumping: Ruby endeavors to pump a ton of oxygen into the iron forge as Senku seems to be the sort of man she's into, and his supposed type involves being good at it.


Kingdom of Science Arc[]

She is first seen along with her two sisters discussing the outsider, Senku. She doesn't comment herself, but listens to the other two as she soaks in the lake.[5] They're later shown vaguely discussing love, lounging on a set of rocks in their bikinis while Suika listens in on them.[4]

When Senku made the ramen, Ruby was lured to the cart by the scent. She flirts with him, asking if he's the one who made the food and what type of girls he's into. Senku replies "girls who can pump tons of oxygen into an iron forge". As such, she helps with the pumping.[6] Soon, a storm arrives and Ruby runs off for shelter along with the other villagers who were working the forge.[7] She then helps with the forge again to get the generator built, and is shown lying face down in the ground, exhausted.[8]

Village Games Arc[]

In the fight between Argo and Ginro, Ruby shrieks with horror at how beaten up Ginro looked following one of Argo's barrages of hits.[9] She then appears disgusted alongside her sisters when Ginro tells everyone his plans to have everyone have a harem.[10]

Communications Arc[]

When Senku makes cotton candy, Ruby is shown trying some and sobbing tears of joy at how delicious it is. After Senku asks Gen about Homura, Ruby and the others assume he's interested in a girl. However, Senku reveals Homura is spying on them.[11]

On Christmas, Ruby is amazed at the beauty of the large tree Senku lit up with light bulbs.[12] Later, when everyone is looking for special rocks for Senku to use as a better filament, Ruby holds something up and comments it looks like a gemstone. As it turns out it was just a beetle husk.[13]

In the anime, she is part of the crowd listening to the record Byakuya left, surprised that they're able to hear the founder's voice and amazed by the song of Lillian.[14]

Age of Exploration Arc[]

Ruby is in one of the pictures Minami takes of everyone. She's sitting on a rock in her new bikini.[15] Later, Ruby is amongst those watching the Perseus depart.[16]

Chapter Appearances[]

Chapter Appearances
Kingdom of Science Arc
13. Part 1: Stone World: The Beginning Absent
14. Those Who Have Faith Absent
15. Two Kingdoms of the Stone World Absent
16. Kohaku Absent
17. Nasty Looks Pictured
18. Sorcery Showdown Absent
19. Two Million Years of Being Absent
20. Stone Road Debut
21. Dawn of Iron Absent
22. Survival Gourmet Pictured
23. The Smooth Talker Appears
24. Lightning Speed!!! Pictured
25. By These Hands, the Light of Science Pictured
26. A Shadow Alliance Absent
27. A Certain Scientists Wish Absent
28. Clear World Absent
29. Senku's Lab Absent
30. Death Green Absent
31. Friends Have Each Other's Backs Absent
32. Brain & Heart Absent
33. Baaad Chemicals Absent
Village Games Arc
34. Sneaky Grand Bout Strategy Absent
35. The Masked Warrior Absent
36. Kinro and Ginro Absent
37. Science-User Chrome Appears
38. Master of Flame Absent
39. And the Winner is... Pictured
40. Two Million Years in the Making Absent
Vs. Hyoga Arc
46. Stone Wars Pictured
47. Science Vs. Power Absent
48. Blades of Science Absent
49. To the Present Absent
50. Humanity's Greatest Weapon Absent
Communications Arc
51. Sweets for the Stone World Pictured
52. Age of Energy Absent
53. Hard Knocks Crafting Club Pictured
54. Flickering Blue Jewel Appears
55. Treasure Dungeon Push Start Absent
56. The Treasure Absent
57. Heat Heart Absent
58. Wave of Science Absent
59. Voices from Here to Infinity Absent
60. Angel's Song, Devil's Whisper Absent
61. Stone Wars Begin Absent
62. Double Chase Absent
63. Information Warfare Absent
64. Hotline Absent
65. Call From the Dead Absent
66. Liars and Truth Tellers Absent
67. Full Mobilization Absent
68. Flame of Revolution Absent
69. Steam Gorilla Absent
70. Paper Shield Absent
71. Prison Break Absent
72. Experience Points Absent
73. Top-Secret Mission Absent
74. Fateful 20 Seconds Absent
75. 20-Second Countdown Absent
76. Final Battle Absent
77. The Power of Science Absent
78. That Which Destroys or Saves Absent
79. For This Very Moment Absent
80. Humanity's Strongest Tag Team Absent
81. Fingertip Absent
82. Epilogue of Stone Wars (End of Part 2) Absent
Age of Exploration Arc
83. Dr. Stone Absent
84. People = Power Absent
85. Ultimate Resource Absent
86. Money Absent
87. Senku's Department Store Absent
88. Wings of Humanity Absent
89. Adventures Absent
90. New World Map Absent
91. Need Bread? Start with Wheat Absent
92. Desire is Noble Absent
93. The First Shot Is Yours Absent
94. The Scent of Black Gold Absent
95. First Contact Absent
96. Eye of Science Absent
97. The Joy of Leadership Absent
98. Ryusui Absent
99. Kingdom of Science Photo Journal Pictured
100. Origin of the 100 Tales Pictured


  • She is named after the gemstone ruby. The most common form of the gemstone is the pinkish-red shade which Ruby's eye color mimics.


  1. Dr. Stone Manga: Volume 19 — Extras
  2. Dr. Stone Manga: Chapter 192
  3. Dr. Stone Manga: Chapter 22, Page 5
  4. 4.0 4.1 Dr. Stone Manga: Chapter 22
  5. Dr. Stone Manga: Chapter 20
  6. Dr. Stone Manga: Chapter 23
  7. Dr. Stone Manga: Chapter 24
  8. Dr. Stone Manga: Chapter 25
  9. Dr. Stone Manga: Chapter 37
  10. Dr. Stone Manga: Chapter 39
  11. Dr. Stone Manga: Chapter 51
  12. Dr. Stone Manga: Chapter 53
  13. Dr. Stone Manga: Chapter 54
  14. Dr. Stone Anime: Episode 24
  15. Dr. Stone Manga: Chapter 99
  16. Dr. Stone Manga: Chapter 100

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