Crystal chest

The Old School RuneScape Wiki also has an article on: osrsw:Crystal chestThe RuneScape Classic Wiki also has an article on: classicrsw:Crystal chest

TaverleyPrifddinas

Crystal chest
Release	27 February 2002 (Update)
Members	Yes
Quest	No
Location	Taverley
Actions	• Open • Examine
Examine	A crystal key can open it.
Advanced data
Object ID	172
Links	MROD172
doc • Talk page

Crystal chest? (edit)? (edit)? (edit)TaverleyPrifddinas? (edit)27 February 2002 (Update)22 September 2014 (Update)? (edit)YesNoPlague's End? (edit)TaverleyPrifddinas• Open
• ExamineOpen&&SPLITPOINT&&Examine? (edit)? (edit)A crystal key can open it.? (edit)? (edit)? (edit)truetrue? (edit)surface? (edit)17292627? (edit)? (edit)17292627? (edit)MRODMROD172MROD92627Versions: 2

The crystal chest is a treasure chest located in Ivy Sophista's house in Taverley. A second chest is located in Prifddinas in the Iorwerth Clan district just to the west of the altar. 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 by using a loop half of a key with a tooth half of a key (or vice versa) or by clicking on one and selecting the "Assemble" option.

Opening a crystal chest grants a variety of rewards, which always include an uncut dragonstone. The key is used once and disappears upon usage. The chests are included among the actions that can provide a money tree seed, regardless of the reward received from the chest.

Taverley Chest Rewards

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. Unless otherwise specified, all possibilities give all of the listed rewards when obtained. Wearing a ring of Wealth or luck of the Dwarves will increase your chances of getting a better drop.

Possibility 1 - Fruit tree seed

The expected value of Possibility 1 is 13,781, which is a profit/loss of -10,388 if buying the crystal key on the GE.

	Item		Quantity	Rarity	GE price	High Alch
	Uncut dragonstone (m)		1	Always	10,954	600
	Calquat tree seed (m)		1	Common	488	204
	Papaya tree seed (m)		1	Common	1,428	69
	Palm tree seed (m)		1	Uncommon	21,516	152

Possibility 2 - Lantadyme seeds

The expected value of Possibility 2 is 11,522, which is a profit/loss of -12,647 if buying the crystal key on the GE.

	Item		Quantity	Rarity	GE price	High Alch
	Uncut dragonstone (m)		1	Always	10,954	600
	Lantadyme seed (m)		2	Common	568	76

Possibility 3 - Grimy torstols

The expected value of Possibility 3 is 21,236, which is a profit/loss of -2,933 if buying the crystal key on the GE.

	Item		Quantity	Rarity	GE price	High Alch
	Uncut dragonstone (m)		1	Always	10,954	600
	Grimy torstol (m)		2	Common	10,282	0

Possibility 4 - Runes

The expected value of Possibility 4 is 141,754, which is a profit/loss of 117,585 if buying the crystal key on the GE.

	Item		Quantity	Rarity	GE price	High Alch
	Uncut dragonstone (m)		1	Always	10,954	600
	Law rune		50	Common	20,350	3,750
	Chaos rune		50	Common	6,900	1,400
	Cosmic rune		50	Common	15,950	2,300
	Death rune		50	Common	14,350	3,100
	Nature rune		50	Common	15,650	3,700
	Body rune		200	Common	5,400	600
	Mind rune		200	Common	3,200	600
	Earth rune		200	Common	3,400	600
	Air rune		200	Common	14,000	600
	Water rune		200	Common	3,600	600
	Fire rune		200	Common	28,000	600

Possibility 5 - Iron stone spirits

The expected value of Possibility 5 is 17,154, which is a profit/loss of -7,015 if buying the crystal key on the GE.

	Item		Quantity	Rarity	GE price	High Alch
	Uncut dragonstone (m)		1	Always	10,954	600
	Iron stone spirit		200	Common	6,200	Not alchemisable

Possibility 6 - Coal stone spirits

The expected value of Possibility 6 is 15,004, which is a profit/loss of -9,165 if buying the crystal key on the GE.

	Item		Quantity	Rarity	GE price	High Alch
	Uncut dragonstone (m)		1	Always	10,954	600
	Coal stone spirit		150	Common	4,050	Not alchemisable

Possibility 7 - Runite stone spirits

The expected value of Possibility 7 is 15,220, which is a profit/loss of -8,949 if buying the crystal key on the GE.

	Item		Quantity	Rarity	GE price	High Alch
	Uncut dragonstone (m)		1	Always	10,954	600
	Runite stone spirit		3	Common	4,266	Not alchemisable

Possibility 8 - Gems

The expected value of Possibility 8 is 35,632, which is a profit/loss of 11,463 if buying the crystal key on the GE.

	Item		Quantity	Rarity	GE price	High Alch
	Uncut dragonstone (m)		1	Always	10,954	600
	Uncut diamond		3	Common	18,363	360
	Uncut ruby		3	Common	6,315	180

Possibility 9 - Loop half of a key

The expected value of Possibility 9 is 39,666, which is a profit/loss of 15,497 if buying the crystal key on the GE.

	Item		Quantity	Rarity	GE price	High Alch
	Uncut dragonstone (m)		1	Always	10,954	600
	Loop half of a key (m)		1	Common	13,712	0
	Coins		15,000	Common	15,000	15,000

Possibility 10 - Tooth half of a key

The expected value of Possibility 10 is 39,572, which is a profit/loss of 15,403 if buying the crystal key on the GE.

	Item		Quantity	Rarity	GE price	High Alch
	Uncut dragonstone (m)		1	Always	10,954	600
	Tooth half of a key (m)		1	Common	13,618	0
	Coins		15,000	Common	15,000	15,000

Possibility 11 - Huge plated rune salvage

The expected value of Possibility 11 is 49,698, which is a profit/loss of 25,529 if buying the crystal key on the GE.

	Item		Quantity	Rarity	GE price	High Alch
	Uncut dragonstone (m)		1	Always	10,954	600
	Huge plated rune salvage		1	Common	38,744	40,000

Possibility 12 - Large plated rune salvage

The expected value of Possibility 12 is 41,686, which is a profit/loss of 17,517 , if buying the crystal key on the GE.

	Item		Quantity	Rarity	GE price	High Alch
	Uncut dragonstone (m)		1	Always	10,954	600
	Large plated rune salvage		1	Common	30,732	32,000

Possibility 13 - Dragonstone armour

The expected value of Possibility 13 is 7,802,077, which is a profit/loss of 7,777,908 if buying the crystal key on the GE.

Receiving this possibility is very rare, at a rate of 1/6801.

	Item		Quantity	Rarity	GE price	High Alch
	Uncut dragonstone (m)		1	Always	10,954	600
	Dragonstone helm		1	1/34005	7,397,962	30,000
	Dragonstone hauberk		1	1/34005	14,214,596	84,000
	Dragonstone greaves		1	1/34005	6,749,387	51,000
	Dragonstone gauntlets		1	1/34005	5,746,426	18,000
	Dragonstone boots		1	1/34005	4,847,244	18,000

Prifddinas Chest Rewards

This chest was released with the first part 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. At the least, the player should still wear a Ring of Wealth when opening either crystal chest. Higher tier luck, however, will provide better rewards.

Possibility 1 - Tree seeds

The expected value of Possibility 1 is 27,169.2, which is a profit/loss of 3,000.2 if buying the crystal key on the GE.

	Item		Quantity	Rarity	GE price	High Alch
	Uncut dragonstone (m)		1	Always	10,954	600
	Yew seed (m)		1	Common	5,842	85
	Papaya tree seed (m)		1	Common	1,428	69
	Elder seed (m)		1	Uncommon	66,536	600

Possibility 2 - Herb seeds

The expected value of Possibility 2 is 12,021.8, which is a profit/loss of -12,147.2 if buying the crystal key on the GE.

	Item		Quantity	Rarity	GE price	High Alch
	Uncut dragonstone (m)		1	Always	10,954	600
	Dwarf weed seed (m)		1	Common	1,867	38
	Torstol seed (m)		2	Common	868	76

Possibility 3

The expected value of Possibility 3 is 47,434, which is a profit/loss of 23,265 if buying the crystal key on the GE.

	Item		Quantity	Rarity	GE price	High Alch
	Uncut dragonstone (m)		1	Always	10,954	600
	Grimy lantadyme (m)		5	Common	36,480	0
	Crystal tree blossom (m)		1	Common	Not sold	Not alchemisable

Possibility 4 - Talismans

The expected value of Possibility 4 is 20,425, which is a profit/loss of -3,744 if buying the crystal key on the GE.

	Item		Quantity	Rarity	GE price	High Alch
	Uncut dragonstone (m)		1	Always	10,954	600
	Fire talisman		5 (noted)	Common	1,405	10
	Water talisman		2 (noted)	Common	8,066	4

Possibility 5 - Huge bladed rune salvage

The expected value of Possibility 5 is 88,520, which is a profit/loss of 64,351 if buying the crystal key on the GE.

	Item		Quantity	Rarity	GE price	High Alch
	Uncut dragonstone (m)		1	Always	10,954	600
	Huge bladed rune salvage		2 (noted)	Common	77,566	80,000

Possibility 6 - Stone spirits

The expected value of Possibility 6 is 12,736, which is a profit/loss of -11,433 if buying the crystal key on the GE.

	Item		Quantity	Rarity	GE price	High Alch
	Uncut dragonstone (m)		1	Always	10,954	600
	Orichalcite stone spirit (m)		3	Common	828	Not alchemisable
	Drakolith stone spirit (m)		3	Common	954	Not alchemisable
	Corrupted ore (m)		50	Common	Not sold	Not alchemisable

Possibility 7 - Runite stone spirits

The expected value of Possibility 7 is 18,064, which is a profit/loss of -6,105 if buying the crystal key on the GE.

	Item		Quantity	Rarity	GE price	High Alch
	Uncut dragonstone (m)		1	Always	10,954	600
	Runite stone spirit		5	Common	7,110	Not alchemisable

Possibility 8 - Uncut gems

The expected value of Possibility 8 is 35,632, which is a profit/loss of 11,463 if buying the crystal key on the GE.

	Item		Quantity	Rarity	GE price	High Alch
	Uncut dragonstone (m)		1	Always	10,954	600
	Uncut diamond		3	Common	18,363	360
	Uncut ruby		3	Common	6,315	180

Possibility 9 - Loop half of a key

The expected value of Possibility 9 is 24,666, which is a profit/loss of 497 if buying the crystal key on the GE.

	Item		Quantity	Rarity	GE price	High Alch
	Uncut dragonstone (m)		1	Always	10,954	600
	Loop half of a key (m)		1	Common	13,712	0
	Crystal motherlode shard (m)		10	Common	Not sold	Not alchemisable

Possibility 10 - Tooth half of a key

The expected value of Possibility 10 is 24,572, which is a profit/loss of 403 if buying the crystal key on the GE.

	Item		Quantity	Rarity	GE price	High Alch
	Uncut dragonstone (m)		1	Always	10,954	600
	Tooth half of a key (m)		1	Common	13,618	0
	Crystal motherlode shard (m)		10	Common	Not sold	Not alchemisable

Possibility 11 - Large plated rune salvage and Medium plated rune salvage

The expected value of Possibility 11 is 64,424, which is a profit/loss of 40,255 if buying the crystal key on the GE.

	Item		Quantity	Rarity	GE price	High Alch
	Uncut dragonstone (m)		1	Always	10,954	600
	Medium plated rune salvage		1	Common	22,738	24,000
	Large plated rune salvage		1	Common	30,732	32,000

Possibility 12 - Large plated rune salvage

The expected value of Possibility 12 is 41,686, which is a profit/loss of 17,517 , if buying the crystal key on the GE.

	Item		Quantity	Rarity	GE price	High Alch
	Uncut dragonstone (m)		1	Always	10,954	600
	Large plated rune salvage		1	Common	30,732	32,000

Possibility 13 - Dragonstone armour

The expected value of Possibility 13 is 7,802,077, which is a profit/loss of 7,777,908 if buying the crystal key on the GE.

Receiving this possibility is very rare, at a rate of 1/6801.

	Item		Quantity	Rarity	GE price	High Alch
	Uncut dragonstone (m)		1	Always	10,954	600
	Dragonstone helm		1	1/34005	7,397,962	30,000
	Dragonstone hauberk		1	1/34005	14,214,596	84,000
	Dragonstone greaves		1	1/34005	6,749,387	51,000
	Dragonstone gauntlets		1	1/34005	5,746,426	18,000
	Dragonstone boots		1	1/34005	4,847,244	18,000

Probabilities

Taverley chest

The probabilities in this section are an estimation based on the data of 26000 crystal chest loots on the Taverley chest, while wearing a luck of the Dwarves.

Possibility	Percentage
Possibility 1: Fruit tree seed	5.98%
Possibility 2: Lantadyme seeds	9.15%
Possibility 3: Grimy torstols	9.30%
Possibility 4: Runes	8.92%
Possibility 5: Iron stone spirits	9.18%
Possibility 6: Coal stone spirits	9.19%
Possibility 7: Runite stone spirits	9.08%
Possibility 8: Gems	8.98%
Possibility 9: Loop half of a key	7.71%
Possibility 10: Tooth half of a key	7.53%
Possibility 11: Huge plated rune salvage	6.10%
Possibility 12: Large plated rune salvage	8.88%
Possibility 13: Dragonstone armour	< 0.02%
Secondary: Money tree seed	0.05%

Using these probabilities, the expected average profit/loss, per crystal key, when looting the crystal chest is 12,635, assuming 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. This also excludes the money tree seeds, as this is not a direct reward from the chest and does not replace any of the other rewards.

Prifddinas chest

The probabilities in this section are an estimation based on the data of 100,000 loots of the Prifddinas crystal chest while wearing luck of the Dwarves. The loot from the Prifddinas chest is not affected by the Voice of Seren.

Possibility	Percentage
Possibility 1: Tree seeds	7.517%
Possibility 2: Herb seeds	7.578%
Possibility 3: Grimy lantadymes	4.482%
Possibility 4: Talismans	7.574%
Possibility 5: Huge bladed rune salvages	6.27%
Possibility 6: Orichalcite and drakolith stone spirits	10.719%
Possibility 7: Runite stone spirits	9.196%
Possibility 8: Gems	9.058%
Possibility 9: Loop half of a key	9.059%
Possibility 10: Tooth half of a key	9.157%
Possibility 11: Large and medium plated rune salvage	8.949%
Possibility 12: Large plated rune salvage	10.949%
Possibility 13: Dragonstone armour	0.013%
Secondary: Money tree seed	0.15%

Using these probabilities, the expected average profit/loss, per crystal key, when looting the crystal chest is 8,698, assuming the crystal key is bought at GE price and the luck of the Dwarves ring is worn.

This excludes:

• crystal tree blossom, corrupted ore and crystal motherlode shard, as they do not have an intrinsic value.
• dragonstone armour piece, as this possibility is much too rare to estimate with any acceptable accuracy
• money tree seed, as this is not a direct reward from the chest and does not replace any of the other rewards.

Estimate probabilities for non-guaranteed loot are:

• 19.88% chance of crystal motherlode shard when rolling possibility 9 or 10. This assumes that possibility 9 and 10 yield the same chance for crystal motherlode shards.
• 8.675% chance of receiving elder seed when rolling possibility 1.
• 63.385% chance of receiving papaya tree seed when rolling possibility 1.
• 27.94% chance of receiving yew seed when rolling possibility 1.
• 20.39% chance of receiving dwarf weed seed when rolling possibility 2.
• 79.61% chance of receiving torstol seed when rolling possibility 2.

Update history

The update history project is a work-in-progress – not all updates to this topic may be covered below. See here for how to help out!

• ninja 1 September 2020 (Update):
  • Crystal chests and Triskelion Keys now use the standard Reward Chest interface, from which items can be banked directly.

• patch 4 May 2020 (Update):
  • Adamantite and coal stone spirits have been replaced by orichalcite and drakolith stone spirits for the Prifddinas crystal chest.

• update 11 June 2013 (Update):
  • We've updated the loot available in the crystal key chest. Collect both halves of the key and open the chest in Taverley, and you'll likely find that your returns will be better than before. There's even a small chance to pick up a piece of dragonstone armour.

• update 27 February 2002 (Update):
  • Added to game.

Trivia

• The crystal key chest was reworked on 11 June 2013 with the release of the Triskelion Treasures. Previous old drops, such as receiving 2,000 coins and a Spinach roll along with an Uncut dragonstone, were removed, and new ones were added, such as the Dragonstone armour.