View source for Uncut opal

{{External|rs|rsc=Uncut Opal}}
{{Infobox Item
|name = Uncut opal
|image = [[File:Uncut opal.png]]
|release = [[27 January]] [[2003]]
|update = Shilo Village Quest online
|members = Yes
|quest = No
|tradeable = Yes
|placeholder = Yes
|equipable = No
|stackable = No
|noteable = Yes
|options = Drop
|examine = This would be worth more cut.
|value = 20
|weight = 0.003
|exchange = Yes
|id = 1625
}}
[[File:Uncut opal detail.png|left|130px]]
An '''uncut opal''' is a semi-precious [[gem]] used in [[Crafting]]. It can be cut with a [[chisel]] to make an [[opal]], granting 15 Crafting [[experience]]. There is a chance to unsuccessfully cut the opal, resulting in a [[crushed gem]] and 3.8 experience. Opals are the lowest level gemstone and are worth very little.

Uncut opals are found mostly with the [[Mining]] skill, only by mining [[gem rocks]] which are located in [[Shilo Village (location)|Shilo Village]] and the [[Lunar Isle mine]]. They can also be found while panning at the [[Digsite]] near the [[River Salve]], or they may be stolen from [[Humans Against Monsters|H.A.M]] members via the [[Thieving]] skill.

==Cutting chance==
The chance to successfully cut an opal is: <math>\frac{(\text{level}-1)*122/98+129}{256}</math>{{CiteTwitter|author=Mod Ash|url=https://twitter.com/JagexAsh/status/1084600993038389248|date=13 January 2019|archiveurl=https://archive.fo/HYHsC|archivedate=14 June 2019}}

{{Skilling success chart|label=Gem cutting rates
|label1=Opal|low1=128|high1=250|req1=1|color1=gray|image1=Opal.png
|label2=Jade|low2=100|high2=245|req2=13|color2=green|image2=Jade.png
|label3=Red topaz|low3=90|high3=240|req3=16|color3=pink|image3=Red topaz.png
}}

Based on this probability formula, the price of uncut opal {{Coins|{{GEP|Uncut opal}}}} and the price of opal {{Coins|{{GEP|Opal}}}}, the minimum Crafting level to breakeven or better when cutting opals is {{GemBreakeven
| uncut = {{GEP|Uncut opal}}
| cut = {{GEP|Opal}}
| r = 1.2448979592
| beta = 129
| gamma = 256}}.

==Training==
===Crafting===
{|class="wikitable sortable" style="text-align: center;"
|-
!{{SCP|Crafting}} Level
!Input
!Material Cost<ref group="t">Cost calculated assuming all inputs are purchased from the [[Grand Exchange]].</ref>
!Output
!Sell Price
!Profit / loss
!{{SCP|Crafting}} XP/Craft
!XP/Hour
!Coins/XP
|-
|1
|{{plink|Uncut opal}}
|{{Coins|{{GEP|Uncut opal}}}}
|{{plink|Opal}}
|{{Coins|{{GEP|Opal}}}}
|{{Coins|{{GEP|Opal}}-{{GEP|Uncut opal}}}}
|15
|<span title="XP rates based on an assumed 2900 cuts per hour" style="cursor:help; border-bottom:1px dotted;">43,500</span>
|{{Coins|({{GEP|Opal}}-{{GEP|Uncut opal}})/15}}
|-
|}
{{Reflist|group=t}}

==Products==
{{Uses material list|Uncut opal}}

==Item sources==
{{Drop sources|Uncut opal}}

===Shop locations===
{{Store locations list|Uncut opal}}

==Changes==
{{Subject changes header}}
{{Subject changes
|date = 24 July 2007
|update = King's Ransom
|change = The item was graphically updated.
}}
{{Subject changes footer}}

===Gallery (historical)===
{|style="text-align: center" cellpadding="15"
|[[File:Uncut opal detail (beta).png|center|300x150px]]
|[[File:Uncut opal detail (historical).png|center|300x150px]]
|[[File:Uncut opal detail.png|center|300x150px]]
|-
|[[File:Uncut opal (beta).png|center]]
|[[File:Uncut opal (historical).png|center]]
|[[File:Uncut opal.png|center]]
|-
|RuneScape 2<br/>Beta
|29 March 2004 –<br/>24 July 2007
|24 July 2007 –<br/>present
|}

==References==
{{Reflist}}

{{Opal}}
{{Gems}}
{{The Dig Site}}