The 'heartwarming jewel mystery' series centers on the handsome jewelry appraiser Richard Ranashinha de Vulpian and the bright and cheerful college student Seigi Nakata as they uncover the hidden messages that lie within jewels while they solve various jewel-related cases by unravelling the hidden psychological aspects of their owners that lie within the gems.
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(Source: Anime News Network, Edited)

Episode 1 - Seigi of the Pink Sapphire

Episode 2 - The Ruby's Truth

Episode 3 - Insight of the Cat's Eye

Episode 4 - The Fighting Garnet

Episode 5 - Opal of Encounters

Episode 6 - Perilous Turquoise

Episode 7 - The Jade of Succession

Episode 8 - The Angel's Aquamarine

Episode 9 - The Alexandrite's Secret

Episode 10 - The Lapis Lazuli of Guidance

Episode 11 - Peridot of Blessings

Episode 12 - Tanzanite of Rebirth

Shuka

The Case Files of Jeweler Richard