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The Classroom of a Black Cat and a Witch S1E20 — Finding the Diamond
8.2
The Classroom of a Black Cat and a Witch•Season 1•Episode 20

Finding the Diamond

8.2/10 · 19 votesAug 23, 202624 min

Ranked #20 of 24 in Season 1•−0.2 vs season avg

Discussion

Spica's in the lead for now, but she needs to do more to stay ahead.

Previous episodeE19 · Race for the RubyNext episodeE21 · Spica vs. Aria
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Seasons1

All1

Season 1 Episodes24

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Magic of the Zodiac

The Magicians of the Zodiac stillE3 8.3

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Bond of Flames

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Tarf's Purpose, Chiron's Resolve

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The Superior Magician

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Memories of Arcturus

Maids at the House of Regulus stillE14 8.2

Maids at the House of Regulus

Astraea's Troubles / Herbarium Book stillE15 8.4

Astraea's Troubles / Herbarium Book

Io Taurus Gets to Work stillE16 8.0

Io Taurus Gets to Work

Finals stillE17 8.0

Finals

Adventures on a Deserted Island stillE18 8.2

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Race for the Ruby stillE19 8.3

Race for the Ruby

Finding the Diamond stillE20 8.2Now viewing

Finding the Diamond

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Spica vs. Aria

Aria's Dream stillE22 8.5

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The Forbidden Date stillE24 8.3

The Forbidden Date

Cast4

Kaede Hondo

Kaede Hondo

Spica Virgo (voice)

Nobunaga Shimazaki

Nobunaga Shimazaki

Claude Sirius (voice)

Fuka Izumi

Fuka Izumi

Aria Aquarius (voice)

Miho Wataya

Miho Wataya

Hana Sasorijo (voice)

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Episode Summary

"Finding the Diamond" is episode 20 of The Classroom of a Black Cat and a Witch season 1. It scored 8.2/10 from 19 votes, ranking #20 of 24 episodes this season (season average 8.4). It aired on August 23, 2026.

Next: E21 · Spica vs. AriaBest of Season 1