Card Trivia:Gem-Knight Master Diamond
- This monster appears in the artwork of "Absorb Fusion".
- This card is named after the diamond.
- This card is the boss monster of the "Gem-Knight" monsters, as its name contains the word "Master" and it has multiple effects involving other "Gem-Knight" cards and their Fusion Monsters.
- Also, by Fusion Summoning this card correctly, it will have at least 3200 ATK, like the boss monsters of the "Vylon", "Steelswarm", and "Gishki" archetypes.
- This monster is an evolution of "Gem-Knight Zirconia", who is subsequently an evolution of "Gem-Knight Crystal".
- This monster has a corrupted form: "Cairngorgon, Antiluminescent Knight".
- This card has a female counterpart: "Gem-Knight Lady Brilliant Diamond"
- This card is the first "Gem-Knight" Fusion Monster to require 3 Fusion Materials, which also are not specific.
