I've been working on a Gem-Knight deck lately and after a few tests I've come up with this version:

Monsters:22
3x Gem-Knight Garnet
3x Gem-Knight Tourmaline
3x Gem-Knight Saphire
3x Gem-Knight Emerald
2x Gem-Knight Armadillo
2x Rescue Rabbit
2x Gem-Turtle
2x Gem-Knight Obsidian
2x Effect Veiler

Spells: 13
3x Gem Knight Fusion
3x Swing of Memories
2x MST
1x Faustian Bargain
1x Monster Reborn
1x Dark Hole
1x Heavy Storm
1x Super-Polymerization

Traps: 5
2x Pyroxenne Fusion
2x Solemn Warning
1x Return from a different dimension

Extra: 15
1x Gem-Knight Master Dia
1x Gem-Knight Zirconia
1x Gem-Knight Prismaura
2x Gem-Knight Amethyst
2x Gem-Knight Citrine
1x Gem-Knight Ruby
1x Gem-Knight Aqua-Marine
1x Gem-Knight Seraphi
1x Gem-Knight Pearl
1x Number 39: Utopia
1x Steelswarm Roach

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