The crystal chest can be found left of the bank at home. It can only be opened with a crystal key, which is made by combining a loop half of key and a tooth half of key. Unlike the base game, the chance to get each possible reward is the same for most rewards, excluding some more sought after rewards like raw rocktails, dragonkin lamps, coins and more.
Rewards possibilities
Spinach roll
Item Quantity
Spinach roll 1
Coins 200,000
Uncut dragonstone
Item Quantity
Uncut dragonstone 1
Swordfish
Item Quantity
Coins 100,000
Swordfish 1
Runes
Item Quantity
Fire rune 50
Water rune 50
Air rune 50
Earth rune 50
Mind rune 50
Body rune 50
Death rune 10
Nature rune 10
Chaos rune 10
Law rune 10
Cosmic rune 10
Coal
Item Quantity
Uncut dragonstone 1
Coal 100
Coal 2
Item Quantity
Coal 400
Cut gems
Item Quantity
Dragonstone 1
Diamond 1
Ruby 1
Crystal key halves
Only one key half is rewarded.
Item Quantity
Uncut dragonstone 1
Coins 7,500
Loop half of a key 1
Tooth half of a key 1
Rune bar
Item Quantity
Uncut dragonstone 1
Rune bar 1
Iron ore
Item Quantity
Uncut dragonstone 1
Iron ore 150
Rune armour
Only one rune armour piece is rewarded.
Item Quantity
Uncut dragonstone 1
Rune platelegs 1
Rune plateskirt 1
Rune sq shield 1
Godsword shard
Only one godsword shard is rewarded.
Item Quantity
Godsword shard 1 1
Godsword shard 2 1
Godsword shard 3 1
Dragon boots
Item Quantity
Dragon boots 1
Gilded armour
Only one gilded armour piece is rewarded.
Item Quantity
Gilded full helm 1
Gilded platebody 1
Gilded platelegs 1
Gilded plateskirt 1
Gilded kiteshield 1
Overload
Item Quantity
Overload (4) 1
Infinity robes
Only one infinity robe piece is rewarded.
Item Quantity
Infinity hat 1
Infinity top 1
Infinity bottoms 1
Infinity gloves 1
Infinity boots 1
Saradomin armour
Only one Saradomin armour piece is rewarded.
Item Quantity
Saradomin full helm 1
Saradomin platebody 1
Saradomin platelegs 1
Saradomin kiteshield 1
Guthix amrour
Only one Guthix armour piece is rewarded.
Item Quantity
Guthix full helm 1
Guthix platebody 1
Guthix platelegs 1
Guthix kiteshield 1
Zamorak armour
Only one Zamorak armour piece is rewareded.
Item Quantity
Zamorak full helm 1
Zamorak platebody 1
Zamorak platelegs 1
Zamorak kiteshield 1
Wizard boots
Item Quantity
Wizard boots 1
Robin hood hat
Item Quantity
Robin hood hat 1
Berserker helm
Item Quantity
Berserker helm 1
Uncut dragonstone 1
Black equipment
Only one black equipment piece is rewaded.
Item Quantity
Black full helm 1
Black platebody 1
Black chainbody 1
Black platelegs 1
Black plateskirt 1
Black sq shield 1
Black kiteshield 1
Black dagger 1
Black sword 1
Black longsword 1
Black 2h sword 1
Black scimitar 1
Black warhammer 1
Black hatchet 1
Black battleaxe 1
Black mace 1
Black armour (t)
Only one black armour (t) piece is rewarded.
Item Quantity
Black full helm (t) 1
Black platebody (t) 1
Black platelegs (t) 1
Black kiteshield (t) 1
Black armour (g)
Only one black armour (g) piece is rewarded.
Item Quantity
Black full helm (g) 1
Black platebody (g) 1
Black platelegs (g) 1
Black kiteshield (g) 1
Black shields (h#)
Only one black shield (h#) piece is rewarded.
Item Quantity
Black shield (h1) 1
Black shield (h2) 1
Black shield (h3) 1
Black shield (h4) 1
Black shield (h5) 1
Holy sandals
Item Quantity
Holy sandals 1
Abyssal whip
Item Quantity
Abyssal whip 1
Amulet of fury
Item Quantity
Amulet of fury 1
Berets
Only one beret is rewarded.
Item Quantity
Blue beret 1
Black beret 1
White beret 1
Blue wizard robes (t)
Only one blue wizard robe (t) piece is rewarded.
Item Quantity
Wizard hat (t) 1
Wizard robe (t) 1
Blue skirt (t) 1
Blue wizard robes (g)
Only one blue wizard robe (g) piece is rewarded
Item Quantity
Wizard hat (g) 1
Wizard robe (g) 1
Blue skirt (g) 1
Coins
Item Quantity
Coins 150,000
Coins 2
Item Quantity
Coins 2,500,000
Leather armour
Only one leather armour piece is rewarded.
Item Quantity
Leather cowl 1
Leather body 1
Hardleather body 1
Studded body 1
Leather armour (t)
Only one leather armour (t) piece is rewarded.
Item Quantity
Studded body (t) 1
Studded chaps (t) 1
Leather armour (g)
Only one leather armour (g) piece is rewarded.
Item Quantity
Studded body (g) 1
Studded chaps (g) 1
Magic secateurs
Item Quantity
Magic secateurs 1
Logs
Item Quantity
Logs 1
Ecumenical key
Item Quantity
Ecumenical key 1
Highwayman mask
Item Quantity
Highwayman mask 1
Dragonkin lamp
Item Quantity
Dragonkin lamp 1
Charm boxes
Item Quantity
Charm box 1
Raw rocktail
Item Quantity
Raw rocktail 200
Top hat
Item Quantity
Top hat 1
Amulet of glory (t4)
Item Quantity
Amulet of glory (t4) 1
Camel mask
Item Quantity
Camel mask 1
Gadderhammer
Item Quantity
Gadderhammer 1
Ana in a barrel
Item Quantity
Ana in a barrel 1
Frost dragon bones
Item Quantity
Frost dragon bones 20
Pure essence
Item Quantity
Pure essence 500
Fighting boots
Item Quantity
Fighting boots 1
Fancy boots
Item Quantity
Fancy boots 1