S04E18: Diamond Heart
The team discovers a giant pile of petrification devices. They take them apart to see what makes them tick.
Previous Episode 
Season 1
Stone World
S1E1 / 05 Jul 2019
King of the Stone World
S1E2 / 12 Jul 2019
Weapons of Science
S1E3 / 19 Jul 2019
Fire the Smoke Signal
S1E4 / 26 Jul 2019
Stone World The Beginning
S1E5 / 02 Aug 2019
Two Nations of the Stone World
S1E6 / 09 Aug 2019
Where Two Million Years Have Gone
S1E7 / 16 Aug 2019
Stone Road
S1E8 / 23 Aug 2019
Let There Be the Light of Science
S1E9 / 30 Aug 2019
A Flimsy Alliance
S1E10 / 06 Sep 2019
Clear World
S1E11 / 13 Sep 2019
Buddies Back to Back
S1E12 / 20 Sep 2019
Masked Warrior
S1E13 / 27 Sep 2019
Master of Flame
S1E14 / 04 Oct 2019
The Culmination of Two Million Years
S1E15 / 11 Oct 2019
A Tale for the Ages
S1E16 / 18 Oct 2019
A Hundred Nights and a Thousand Skies
S1E17 / 25 Oct 2019
Stone Wars
S1E18 / 01 Nov 2019
To Modernity
S1E19 / 08 Nov 2019
The Age of Energy
S1E20 / 15 Nov 2019
Spartan Crafts Club
S1E21 / 22 Nov 2019
The Treasure
S1E22 / 29 Nov 2019
Wave of Science
S1E23 / 06 Dec 2019
Voices Over Infinite Distance
S1E24 / 13 Dec 2019
Season 2
Stone Wars Beginning
S2E1 / 14 Jan 2021
Hot Line
S2E2 / 21 Jan 2021
Call from the Dead
S2E3 / 28 Jan 2021
Full Assault
S2E4 / 04 Feb 2021
Steam Gorilla
S2E5 / 11 Feb 2021
Prison Break
S2E6 / 18 Feb 2021
Secret Mission
S2E7 / 25 Feb 2021
Final Battle
S2E8 / 04 Mar 2021
To Destroy and to Save
S2E9 / 11 Mar 2021
Humanity's Strongest Tag Team
S2E10 / 18 Mar 2021
PROLOGUE OF Dr. STONE
S2E11 / 25 Mar 2021
Season 3
NEW WORLD MAP
S3E1 / 06 Apr 2023
Greed Equals Justice
S3E2 / 13 Apr 2023
First Contact
S3E3 / 20 Apr 2023
Eyes of Science
S3E4 / 27 Apr 2023
Science Vessel Perseus
S3E5 / 04 May 2023
TREASURE BOX
S3E6 / 11 May 2023
Ray of Despair, Ray of Hope
S3E7 / 18 May 2023
The Trump Card Aboard the Science Vessel
S3E8 / 25 May 2023
Beautiful Science
S3E9 / 01 Jun 2023
SCIENCE WARS
S3E10 / 08 Jun 2023
With This Fist, a Miracle
S3E11 / 15 Jun 2023
The Kingdom of Science's Counterattack
S3E12 / 12 Oct 2023
The Medusa's True Face
S3E13 / 19 Oct 2023
Deal Game, Test of Wit
S3E14 / 26 Oct 2023
Battle in Three Dimensions
S3E15 / 02 Nov 2023
Total War
S3E16 / 09 Nov 2023
JOKER
S3E17 / 16 Nov 2023
Flicker of Doom
S3E18 / 23 Nov 2023
LAST MAN STANDING
S3E19 / 30 Nov 2023
FIRST DREAM
S3E20 / 07 Dec 2023
Treasure Island
S3E21 / 14 Dec 2023
BEYOND THE NEW WORLD
S3E22 / 21 Dec 2023
Season 4
RYUSUI VS. SENKU
S4E1 / 09 Jan 2025
SCIENCE JOURNEY
S4E2 / 16 Jan 2025
Light Trap in the Darkness
S4E3 / 23 Jan 2025
Dr. X
S4E4 / 30 Jan 2025
DOCTOR VS. DOCTOR
S4E5 / 06 Feb 2025
SCIENCE IS ELEGANT
S4E6 / 13 Feb 2025
The Two Scientists
S4E7 / 20 Feb 2025
LOCK ON
S4E8 / 27 Feb 2025
Light of Science
S4E9 / 06 Mar 2025
Dirty Roads
S4E10 / 13 Mar 2025
Those Who Know the Rules; Those Who Make Them
S4E11 / 20 Mar 2025
Reunion
S4E12 / 27 Mar 2025
Watching the Same Moon
S4E13 / 10 Jul 2025
EARTH RACE
S4E14 / 17 Jul 2025
The Escape
S4E15 / 24 Jul 2025
Medusa Mechanism
S4E16 / 31 Jul 2025
Sickening Yet Beautiful
S4E17 / 07 Aug 2025
Diamond Heart
S4E18 / 14 Aug 2025
Stone Sanctuary
S4E19 / 21 Aug 2025
What I Once Sought to Destroy
S4E20 / 28 Aug 2025
Our Dr. Stone
S4E21 / 04 Sep 2025
Until We Meet Again
S4E22 / 11 Sep 2025
Scientist, All Alone
S4E23 / 18 Sep 2025
Whole New World
S4E24 / 25 Sep 2025
Future Engine
S4E25 / 02 Apr 2026
Fire
S4E26 / 09 Apr 2026
The Universe Is Written in the Language of Mathematics
S4E27 / 16 Apr 2026
Dawn of the Computer
S4E28 / 23 Apr 2026
The Truth About the Rocket
S4E29 / 30 Apr 2026
Stone to Space
S4E30 / 07 May 2026
Unknown Known
S4E31 / 14 May 2026
Challengers of Science
S4E32 / 21 May 2026
Wanting Everything
S4E33 / 28 May 2026
Countdown
S4E34 / 04 Jun 2026
Giant Step
S4E35 / 11 Jun 2026
Why-Man
S4E36 / 18 Jun 2026
Ushers of an Exhilarating Future
S4E37 / 25 Jun 2026
Yusuke Kobayashi
Senku Ishigami (voice)
Makoto Furukawa
Taiju Oki (voice)
Kana Ichinose
Yuzuriha Ogawa (voice)
Manami Numakura
Kohaku (voice)
Gen Sato
Chrome (voice)
Kengo Kawanishi
Asagiri Gen (voice)
Ryota Suzuki
Nanami Ryuusui (voice)
