Wikia

RuneScape Wiki

Crystal chest

Discuss72
27,587pages on
this wiki
Classic Runestone
[view][talk]

The crystal key chest is a treasure chest located in Ivy Sophista's house in Taverley. A second chest is located in Prifddinas in the Iorwerth Clan section. The chests are locked and can only be opened by a crystal key. Attempting to open the chest without the crystal key yields the message: "This chest is securely locked shut." The crystal key is made up of a loop half of a key and a tooth half of a key; you can make the crystal key by using them with each other, or selecting the "Assemble" option. Opening a crystal chest grants a variety of rewards, which always include an uncut dragonstone. The crystal chest in Prifddinas grants slightly better rewards than the Taverley chest. The crystal key sells for more than most of the rewards, making it more monetarily satisfying to sell the key. When the key is used it disappears, so opening the chest is a gamble.

RewardsEdit

The chest loot always includes an uncut dragonstone, together with a random reward generated from 13 possible reward tables. Below are the values of the chest's contents, based on current Grand Exchange prices.

After an update, wearing a ring of wealth will increase your chances of getting a better drop.

It is only possible to obtain rune platelegs if you are a male character, and a rune plateskirt if you are female character.

It is a common misconception that you can obtain crystal weapons from the chest. The chest does not contain any of these items, as they are a quest reward.

Possibilities - Taverley chestEdit

Possibility 1 - Fruit tree seedEdit

The expected value of Possibility 1 is 71,508, which is a profit/loss of 11,751 if buying the crystal key on the GE.

Item Quantity Rarity GE market price
Uncut dragonstoneUncut dragonstone1Always12,139
Calquat tree seed 5Calquat tree seed1Common [1]13,261
Papaya tree seed 5Papaya tree seed1Common [1]82,681
Palm tree seed 5Palm tree seed1Common [1]173,347
  1. ^ a b c With Possibility 1, you are guaranteed to get either a calquat tree seed, a papaya tree seed or a palm tree seed. Both the calquat and papaya tree seed have a probability of 5:11 (45.45%), and the palm tree seed has a probability of 1:11 (9%).
Possibility 2 - Lantadyme seedsEdit

The expected value of Possibility 2 is 43,523, which is a profit/loss of -16,234 if buying the crystal key on the GE.

Item Quantity Rarity GE market price
Uncut dragonstoneUncut dragonstone1Always12,139
Herb seed 5Lantadyme seed2Always31,384
Possibility 3 - Grimy torstolsEdit

The expected value of Possibility 3 is 22,751, which is a profit/loss of -37,006 if buying the crystal key on the GE.

Item Quantity Rarity GE market price
Uncut dragonstoneUncut dragonstone1Always12,139
Grimy torstolGrimy torstol2Always10,612
Possibility 4 - RunesEdit

The expected value of Possibility 4 is 105,789, which is a profit/loss of 46,032 if buying the crystal key on the GE.

Item Quantity Rarity GE market price
Uncut dragonstoneUncut dragonstone1Always12,139
Law runeLaw rune50Always14,600
Chaos runeChaos rune50Always2,150
Cosmic runeCosmic rune50Always9,900
Death runeDeath rune50Always14,650
Nature runeNature rune50Always15,150
Body runeBody rune200Always10,000
Mind runeMind rune200Always2,600
Earth runeEarth rune200Always2,600
Air runeAir rune200Always5,800
Water runeWater rune200Always3,600
Fire runeFire rune200Always12,600
Possibility 5 - Iron oreEdit

The expected value of Possibility 5 is 62,739, which is a profit/loss of 2,982 if buying the crystal key on the GE.

Item Quantity Rarity GE market price
Uncut dragonstoneUncut dragonstone1Always12,139
Iron oreIron ore200 (noted)Always50,600
Possibility 6 - CoalEdit

The expected value of Possibility 6 is 58,939, which is a profit/loss of -818 if buying the crystal key on the GE.

Item Quantity Rarity GE market price
Uncut dragonstoneUncut dragonstone1Always12,139
CoalCoal150 (noted)Always46,800
Possibility 7 - Rune barsEdit

The expected value of Possibility 7 is 55,144, which is a profit/loss of -4,613 if buying the crystal key on the GE.

Item Quantity Rarity GE market price
Uncut dragonstoneUncut dragonstone1Always12,139
Rune barRune bar3Always43,005
Possibility 8 - GemsEdit

The expected value of Possibility 8 is 31,633, which is a profit/loss of -28,124 if buying the crystal key on the GE.

Item Quantity Rarity GE market price
Uncut dragonstoneUncut dragonstone1Always12,139
Uncut diamondUncut diamond3Always12,090
Uncut rubyUncut ruby3Always7,404
Possibility 9 - Loop half of a keyEdit

The expected value of Possibility 9 is 46,459, which is a profit/loss of -13,298 if buying the crystal key on the GE.

Item Quantity Rarity GE market price
Uncut dragonstoneUncut dragonstone1Always12,139
Loop half of a keyLoop half of a key1Always19,320
Coins 10000Coins15,000AlwaysNot sold
Possibility 10 - Tooth half of a keyEdit

The expected value of Possibility 10 is 65,944, which is a profit/loss of 6,187 if buying the crystal key on the GE.

Item Quantity Rarity GE market price
Uncut dragonstoneUncut dragonstone1Always12,139
Tooth half of a keyTooth half of a key1Always38,805
Coins 10000Coins15,000AlwaysNot sold
Possibility 11 - Rune platebodyEdit

The expected value of Possibility 11 is 50,099, which is a profit/loss of -9,658 if buying the crystal key on the GE.

Item Quantity Rarity GE market price
Uncut dragonstoneUncut dragonstone1Always12,139
Rune platebodyRune platebody1Always37,960
Possibility 12 - Rune platelegs or plateskirtEdit

The expected value of Possibility 12 is 49,151 for male characters and 49,541 for female characters, which is a profit/loss of -10,606 for male characters and -10,216 for female characters, if buying the crystal key on the GE.

Item Quantity Rarity GE market price
Uncut dragonstoneUncut dragonstone1Always12,139
Rune platelegsRune platelegs1Common [1]37,012
Rune plateskirtRune plateskirt1Common [1]37,402
  1. ^ a b With Possibility 12, you are guaranteed to get either a rune platelegs or rune plateskirt. Male characters will always receive a rune platelegs, while female characters will always receive a rune plateskirt.
Possibility 13 - Dragonstone armourEdit

The expected value of Possibility 13 is 11,023,192, which is a profit/loss of 10,963,435 if buying the crystal key on the GE.

Receiving this possibility is very rare, at a rate of 1/6801[1].
Item Quantity Rarity GE market price
Uncut dragonstoneUncut dragonstone1Always12,139
Dragonstone helmDragonstone helm1Common [2]7,401,123
Dragonstone hauberkDragonstone hauberk1Common [2]19,859,996
Dragonstone greavesDragonstone greaves1Common [2]12,794,460
Dragonstone gauntletsDragonstone gauntlets1Common [2]7,249,941
Dragonstone bootsDragonstone boots1Common [2]7,749,745
  1. ^ https://twitter.com/JagexTimbo/status/557600452150579200
  2. ^ a b c d e With Possibility 13, you are guaranteed to get exactly one piece of dragonstone armour. Each piece has the same probability of being received.

Possibilities - Prifddinas chestEdit

Crystal chest (Prifddinas)
Crystal chest (Prifddinas) location

Prifddinas chest location.

This chest was released with part 1 of Prifddinas on 22 September 2014 and is located in the Iorwerth Manor against the south wall. It has an improved drop table over the chest in Taverley. While the Voice of Seren is active for the Iorwerth clan, the chest provides an increased chance of Prifddinas-related items looted, including: corrupted ore, Crystal tree blossoms, and Crystal motherlode shards. At the least, the player should still wear a Ring of wealth when opening either crystal chest.

Possibility 1Edit

The expected value of Possibility 1 is 44,889, which is a profit/loss of -14,868 if buying the crystal key on the GE.

Item Quantity Rarity GE market price
Uncut dragonstoneUncut dragonstone1Always12,139
Grimy lantadymeGrimy lantadyme5Always32,750
Crystal tree blossomCrystal tree blossom1AlwaysNot sold
Possibility 2 - Tree seedsEdit
Item Quantity Rarity GE market price
Uncut dragonstoneUncut dragonstone1Always12,139
Yew seed 5Yew seed1Common72,558
Papaya tree seed 5Papaya tree seed1Common82,681
Elder seed 5Elder seed1Uncommon85,433
Possibility 3 - Tooth half of a keyEdit

The expected value of Possibility 3 is 50,944, which is a profit/loss of -8,813 if buying the crystal key on the GE.

Item Quantity Rarity GE market price
Uncut dragonstoneUncut dragonstone1Always12,139
Tooth half of a keyTooth half of a key1Always38,805
Crystal motherlode shardCrystal motherlode shard10CommonNot sold
Possibility 4 - Loop half of a keyEdit

The expected value of Possibility 4 is 31,459, which is a profit/loss of -28,298 if buying the crystal key on the GE.

Item Quantity Rarity GE market price
Uncut dragonstoneUncut dragonstone1Always12,139
Loop half of a keyLoop half of a key1Always19,320
Crystal motherlode shardCrystal motherlode shard10CommonNot sold
Possibility 5 - Herb seedsEdit
Item Quantity Rarity GE market price
Uncut dragonstoneUncut dragonstone1Always12,139
Herb seed 5Dwarf weed seed1Common21,229
Herb seed 5Torstol seed2Common22,344
Possibility 6 - OresEdit

The expected value of Possibility 6 is 49,199, which is a profit/loss of -10,558 if buying the crystal key on the GE.

Item Quantity Rarity GE market price
Uncut dragonstoneUncut dragonstone1Always12,139
CoalCoal80 (noted)Always24,960
Adamantite oreAdamantite ore10 (noted)Always12,100
Corrupted oreCorrupted ore50AlwaysNot sold
Possibility 7 - Rune HalberdEdit

The expected value of Possibility 7 is 87,636, which is a profit/loss of 27,879 if buying the crystal key on the GE.

Item Quantity Rarity GE market price
Uncut dragonstoneUncut dragonstone1Always12,139
Rune halberdRune halberd1Always75,497
Possibility 8 - Rune armourEdit

The expected value of Possibility 8 is 63,991, which is a profit/loss of 4,234 if buying the crystal key on the GE.

Item Quantity Rarity GE market price
Uncut dragonstoneUncut dragonstone1Always12,139
Rune full helmRune full helm1Always20,204
Rune kiteshieldRune kiteshield1Always31,648
Possibility 9 - Rune platelegs or plateskirtEdit

The expected value of Possibility 9 is 49,151 for male characters and 49,541 for female characters, which is a profit/loss of -10,606 for male characters and -10,216 for female characters, if buying the crystal key on the GE.

Item Quantity Rarity GE market price
Uncut dragonstoneUncut dragonstone1Always12,139
Rune platelegsRune platelegs1Common [1]37,012
Rune plateskirtRune plateskirt1Common [1]37,402
  1. ^ a b With Possibility 9, you are guaranteed to get either a rune platelegs or rune plateskirt. Male characters will always receive a rune platelegs, while female characters will always receive a rune plateskirt.
Possibility 10 - Rune barsEdit

The expected value of Possibility 10 is 55,144, which is a profit/loss of -4,613 if buying the crystal key on the GE.

Item Quantity Rarity GE market price
Uncut dragonstoneUncut dragonstone1Always12,139
Rune barRune bar3Always43,005
Possibility 11 - TalismansEdit

The expected value of Possibility 11 is 51,394, which is a profit/loss of -8,363 if buying the crystal key on the GE.

Item Quantity Rarity GE market price
Uncut dragonstoneUncut dragonstone1Always12,139
Fire talismanFire talisman5 (noted)Always15,765
Water talismanWater talisman2 (noted)Always23,490
Possibility 12 - Uncut gemsEdit

The expected value of Possibility 12 is 31,633, which is a profit/loss of -28,124 if buying the crystal key on the GE.

Item Quantity Rarity GE market price
Uncut dragonstoneUncut dragonstone1Always12,139
Uncut diamondUncut diamond3Always12,090
Uncut rubyUncut ruby3Always7,404
Possibility 13 - Dragonstone armourEdit

The expected value of Possibility 13 is 11,023,192, which is a profit/loss of 10,963,435 if buying the crystal key on the GE.

Receiving this possibility is very rare, at a rate of 1/6801[1].
Item Quantity Rarity GE market price
Uncut dragonstoneUncut dragonstone1Always12,139
Dragonstone helmDragonstone helm1Common [2]7,401,123
Dragonstone hauberkDragonstone hauberk1Common [2]19,859,996
Dragonstone greavesDragonstone greaves1Common [2]12,794,460
Dragonstone gauntletsDragonstone gauntlets1Common [2]7,249,941
Dragonstone bootsDragonstone boots1Common [2]7,749,745
  1. ^ https://twitter.com/JagexTimbo/status/557600452150579200
  2. ^ a b c d e With Possibility 13, you are guaranteed to get exactly one piece of dragonstone armour. Each piece has the same probability of being received.

Probabilities - Taverley chestEdit

The probabilities in this section are an estimation based on the data of 1134 crystal chest loots on the Taverley chest, while wearing a ring of wealth.
Possibility Percentage
Possibility 1: Fruit tree seed 8.02%[1]
Possibility 2: Lantadyme seeds 9.61%
Possibility 3: Grimy torstols 9.96%
Possibility 4: Runes 7.5%
Possibility 5: Iron ore 8.47%
Possibility 6: Coal 9.17%
Possibility 7: Rune bars 9.61%
Possibility 8: Gems 9.61%
Possibility 9: Loop half of a key 7.94%
Possibility 10: Tooth half of a key 6.61%
Possibility 11: Rune platebody 5.03%
Possibility 12: Rune platelegs or plateskirt 8.47%
Possibility 13: Dragonstone armour < 0.01%
  1. ^ The runescape wiki lists the probability of receiving a calquat or papaya tree seed at 5:11 (45.45%) each and the probability of receiving a palm tree seed at 1:11 (9%). This data shows a probability of 49.45% for the calquat, 47.25% for the papaya, and 3.30% for the palm tree seed.

Using these probabilities, the expected average profit/loss, per crystal key, when looting the crystal chest is -5,818. (Assuming you will receive whichever of the rune platelegs and rune plateskirt is worth more, and the crystal key is bought at GE price). This is excluding the possibility of receiving a dragonstone armour piece, as this possibility is much too rare to estimate with any acceptable accuracy.

TriviaEdit

Around Wikia's network

Random Wiki