Crystal chest
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Release date | 27 February 2002 (Update) |
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Members? | Yes |
Quest? | No |
Location | Taverley |
Examine | A crystal key can open it. |
The crystal key chest is a treasure chest in Taverley that is famous for containing uncut dragonstones, among other things. The chest, located in Ivy Sophista's house, is locked and can only be opened by a crystal key. The crystal key is made up of a loop half of a key and the tooth half of a key; you can make the crystal key by using them with each other, or selecting the "Assemble" option. 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.
There is another chest located in Prifddinas in the Iorwerth section. This chest has slightly improved rewards over the chest in Taverley.
Attempting to open the chest without the crystal key yields the message: "This chest is securely locked shut."
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 a Crystal ward or a crystal bow from the chest. The chest does not contain either of these items, as they are a quest reward.
Possibilities - Taverley chestEdit
Possibility 1 - Fruit tree seedEdit
The expected value of Possibility 1 is 63,537, which is a profit/loss of -9,040 if buying the crystal key on the GE.
Item Quantity Rarity GE market price Uncut dragonstone 1 Always 14,815 Calquat tree seed 1 Common ^{[1]} 14,537 Papaya tree seed 1 Common ^{[1]} 63,303 Palm tree seed 1 Common ^{[1]} 146,746
- ^ ^{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 74,167, which is a profit/loss of 1,590 if buying the crystal key on the GE.
Item Quantity Rarity GE market price Uncut dragonstone 1 Always 14,815 Lantadyme seed 2 Always 59,352
Possibility 3 - Grimy torstolsEdit
The expected value of Possibility 3 is 26,481, which is a profit/loss of -46,096 if buying the crystal key on the GE.
Item Quantity Rarity GE market price Uncut dragonstone 1 Always 14,815 Grimy torstol 2 Always 11,666
Possibility 4 - RunesEdit
The expected value of Possibility 4 is 127,515, which is a profit/loss of 54,938 if buying the crystal key on the GE.
Item Quantity Rarity GE market price Uncut dragonstone 1 Always 14,815 Law rune 50 Always 21,700 Chaos rune 50 Always 3,250 Cosmic rune 50 Always 12,750 Death rune 50 Always 14,600 Nature rune 50 Always 15,400 Body rune 200 Always 14,400 Mind rune 200 Always 3,200 Earth rune 200 Always 4,400 Air rune 200 Always 6,200 Water rune 200 Always 5,000 Fire rune 200 Always 11,800
Possibility 5 - Iron oreEdit
The expected value of Possibility 5 is 62,215, which is a profit/loss of -10,362 if buying the crystal key on the GE.
Item Quantity Rarity GE market price Uncut dragonstone 1 Always 14,815 Iron ore 200 (noted) Always 47,400
Possibility 6 - CoalEdit
The expected value of Possibility 6 is 51,715, which is a profit/loss of -20,862 if buying the crystal key on the GE.
Item Quantity Rarity GE market price Uncut dragonstone 1 Always 14,815 Coal 150 (noted) Always 36,900
Possibility 7 - Rune barsEdit
The expected value of Possibility 7 is 57,268, which is a profit/loss of -15,309 if buying the crystal key on the GE.
Item Quantity Rarity GE market price Uncut dragonstone 1 Always 14,815 Rune bar 3 Always 42,453
Possibility 8 - GemsEdit
The expected value of Possibility 8 is 41,137, which is a profit/loss of -31,440 if buying the crystal key on the GE.
Item Quantity Rarity GE market price Uncut dragonstone 1 Always 14,815 Uncut diamond 3 Always 17,217 Uncut ruby 3 Always 9,105
Possibility 9 - Loop half of a keyEdit
The expected value of Possibility 9 is 64,650, which is a profit/loss of -7,927 if buying the crystal key on the GE.
Item Quantity Rarity GE market price Uncut dragonstone 1 Always 14,815 Loop half of a key 1 Always 34,835 Coins 15,000 Always Not sold
Possibility 10 - Tooth half of a keyEdit
The expected value of Possibility 10 is 64,489, which is a profit/loss of -8,088 if buying the crystal key on the GE.
Item Quantity Rarity GE market price Uncut dragonstone 1 Always 14,815 Tooth half of a key 1 Always 34,674 Coins 15,000 Always Not sold
Possibility 11 - Rune platebodyEdit
The expected value of Possibility 11 is 53,074, which is a profit/loss of -19,503 if buying the crystal key on the GE.
Item Quantity Rarity GE market price Uncut dragonstone 1 Always 14,815 Rune platebody 1 Always 38,259
Possibility 12 - Rune platelegs or plateskirtEdit
The expected value of Possibility 12 is 52,296 for male characters and 52,390 for female characters, which is a profit/loss of -20,281 for male characters and -20,187 for female characters, if buying the crystal key on the GE.
Item Quantity Rarity GE market price Uncut dragonstone 1 Always 14,815 Rune platelegs 1 Common ^{[1]} 37,481 Rune plateskirt 1 Common ^{[1]} 37,575
- ^ ^{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 24,169,629, which is a profit/loss of 24,097,052 if buying the crystal key on the GE.
- Receiving this possibility is very rare.
Item Quantity Rarity GE market price Uncut dragonstone 1 Always 14,815 Dragonstone helm 1 Common ^{[1]} 17,581,693 Dragonstone hauberk 1 Common ^{[1]} 42,376,486 Dragonstone greaves 1 Common ^{[1]} 26,343,729 Dragonstone gauntlets 1 Common ^{[1]} 17,116,490 Dragonstone boots 1 Common ^{[1]} 17,355,673
- ^ ^{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
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 48,945, which is a profit/loss of -23,632 if buying the crystal key on the GE.
Item Quantity Rarity GE market price Uncut dragonstone 1 Always 14,815 Grimy lantadyme 5 Always 34,130 Crystal tree blossom 1 Always Not sold
Possibility 2 - Tree seedsEdit
Item Quantity Rarity GE market price Uncut dragonstone 1 Always 14,815 Yew seed 1 Common 79,722 Papaya tree seed 1 Common 63,303 Elder seed 1 Uncommon 103,369
Possibility 3 - Tooth half of a keyEdit
The expected value of Possibility 3 is 49,489, which is a profit/loss of -23,088 if buying the crystal key on the GE.
Item Quantity Rarity GE market price Uncut dragonstone 1 Always 14,815 Tooth half of a key 1 Always 34,674 Crystal motherlode shard 10 Common Not sold
Possibility 4 - Loop half of a keyEdit
The expected value of Possibility 4 is 49,650, which is a profit/loss of -22,927 if buying the crystal key on the GE.
Item Quantity Rarity GE market price Uncut dragonstone 1 Always 14,815 Loop half of a key 1 Always 34,835 Crystal motherlode shard 10 Common Not sold
Possibility 5 - Herb seedsEdit
Item Quantity Rarity GE market price Uncut dragonstone 1 Always 14,815 Dwarf weed seed 1 Common 36,734 Torstol seed 2 Common 44,942
Possibility 6 - OresEdit
The expected value of Possibility 6 is 47,825, which is a profit/loss of -24,752 if buying the crystal key on the GE.
Item Quantity Rarity GE market price Uncut dragonstone 1 Always 14,815 Coal 80 (noted) Always 19,680 Adamantite ore 10 (noted) Always 13,330 Corrupted ore 50 Always Not sold
Possibility 7 - Rune HalberdEdit
The expected value of Possibility 7 is 90,211, which is a profit/loss of 17,634 if buying the crystal key on the GE.
Item Quantity Rarity GE market price Uncut dragonstone 1 Always 14,815 Rune halberd 1 Always 75,396
Possibility 8 - Rune armourEdit
The expected value of Possibility 8 is 66,820, which is a profit/loss of -5,757 if buying the crystal key on the GE.
Item Quantity Rarity GE market price Uncut dragonstone 1 Always 14,815 Rune full helm 1 Always 20,324 Rune kiteshield 1 Always 31,681
Possibility 9 - Rune platelegs or plateskirtEdit
The expected value of Possibility 9 is 52,296 for male characters and 52,390 for female characters, which is a profit/loss of -20,281 for male characters and -20,187 for female characters, if buying the crystal key on the GE.
Item Quantity Rarity GE market price Uncut dragonstone 1 Always 14,815 Rune platelegs 1 Common ^{[1]} 37,481 Rune plateskirt 1 Common ^{[1]} 37,575
- ^ ^{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 57,268, which is a profit/loss of -15,309 if buying the crystal key on the GE.
Item Quantity Rarity GE market price Uncut dragonstone 1 Always 14,815 Rune bar 3 Always 42,453
Possibility 11 - TalismansEdit
The expected value of Possibility 11 is 49,217, which is a profit/loss of -23,360 if buying the crystal key on the GE.
Item Quantity Rarity GE market price Uncut dragonstone 1 Always 14,815 Fire talisman 5 (noted) Always 13,260 Water talisman 2 (noted) Always 21,142
Possibility 12 - Uncut gemsEdit
The expected value of Possibility 12 is 41,137, which is a profit/loss of -31,440 if buying the crystal key on the GE.
Item Quantity Rarity GE market price Uncut dragonstone 1 Always 14,815 Uncut diamond 3 Always 17,217 Uncut ruby 3 Always 9,105
Possibility 13 - Dragonstone armourEdit
The expected value of Possibility 13 is 24,169,629, which is a profit/loss of 24,097,052 if buying the crystal key on the GE.
- Receiving this possibility is very rare.
Item Quantity Rarity GE market price Uncut dragonstone 1 Always 14,815 Dragonstone helm 1 Common ^{[1]} 17,581,693 Dragonstone hauberk 1 Common ^{[1]} 42,376,486 Dragonstone greaves 1 Common ^{[1]} 26,343,729 Dragonstone gauntlets 1 Common ^{[1]} 17,116,490 Dragonstone boots 1 Common ^{[1]} 17,355,673
- ^ ^{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 |
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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% |
- ^ 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 -12,181. (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
- The crystal key chest was reworked on 11 June 2013 with the release of the Triskelion Treasures. Previous old drops, such as receiving 2000 coins and a Spinach roll along with an Uncut dragonstone, were removed, and new ones were added, such as the Dragonstone armour.