Gauntlet

The Gauntlet is a solo minigame which has some substantial requirements. When you start at both the normal and corrupted gauntlets, your chance of death within the minigame will be quite high. This can be reduced through minion learning (down to 6%).
To begin a trip, use /minigames gauntlet start corrupted:True (the corrupted option may be left off if doing normal gauntlet).
Requirements
Level 80 in all combat stats (90 for Corrupted)
Level 77 Prayer
Level 70 in the following skills:
Smithing
Mining
Farming
Agility
Woodcutting
Fishing
Cooking
Herblore
Construction
Hunter
200+ quest points
Corrupted Gauntlet also requires at least 50kc in the normal Gauntlet.
Boosts
Augury & Rigour prayers both provide a 3% boost.
Higher KC provides a speed boost (up to 20% at 100kc).
Rewards
The standard rewards from gauntlet can be obtained here such as Crystal shards alongside runes, gems, arrows, and rune/dragon alchables. The unique rewards include:
Crystal weapon seeds 
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You can create a Crystal bow or Crystal halberd (used at ToB). Both require 78 smithing and crafting.
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/create item:Crystal bow - Requires 40 shards
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 /create item:Crystal halberd - Requires 40 shards
Crystal armour seeds 
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You can create all 3 pieces of the crystal armour set. Each armour piece requires level 70/72/74 smithing and crafting respectively.
 
  /create item: Crystal helm - Requires 150 shards
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/create item: Crystal body - Requires 300 shards
  
   /create item: Crystal legs - Requires 450 shards
Enhanced crystal weapon seeds 
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You need 82 crafting and smithing to create both the inactive and charged versions of the blade/bow. The charged bow provides boosts to bosses such as Sara, Arma, Zulrah, and CoX. The charged blade is used at ToB. Charged versions can be reverted back to inactive versions and inactive weapons can be reverted back to seeds (costs 250 crystal shards for the latter).
/create item:Blade of saeldor (inactive) - Requires 100 shards 
/create item:Bow of faerdhinen (inactive) - Requires 100 shards 
/create item:Blade of saeldor (c) - Requires 1000 shards
/create item:Bow of faerdhinen (c) - Requires 2000 shards
Note: The charged blade/bow are untradeable, while the inactive versions are tradeable.
Trading in Crystal Seeds
You may trade in your spare crystal seeds for crystal shards through the /create command.
E.g.  /create item: Revert crystal armour seed
Seed
Shards
Crystal weapon seed
10
Crystal tool seed
100
Enhanced teleport crystal seed
150
Crystal armour seed
250
Enhanced crystal weapon seed
1,500