Editing Diamond Star

{{item infobox
|image=[[File:Diamond Star PMTTYDNS icon.png|100px]]
|first_appearance=''[[Paper Mario: The Thousand-Year Door]]'' ([[List of games by date#2004|2004]])
|latest_appearance=''[[Paper Mario: The Thousand-Year Door (Nintendo Switch)|Paper Mario: The Thousand-Year Door]]'' ([[Nintendo Switch]]) ([[List of games by date#2024|2024]])
|description=''"The object Koops's father found in Hooktail's belly."''
}}
{{quote|I found it down there in [[Hooktail]]'s belly. Nice, huh? I was gonna keep it as a souvenir... But if this is the thing you've been looking for, you can have it!|Koopley|Paper Mario: The Thousand-Year Door (Nintendo Switch)}}
The '''Diamond Star''' is the first of the [[Crystal Stars]] [[Mario]] collects in ''[[Paper Mario: The Thousand-Year Door]]'', obtained upon completion of Chapter 1: Castle and Dragon.

According to [[Grifty]], [[Hooktail Castle]] was constructed by the [[Shadow Queen]] to hold a Crystal Star, likely the Diamond Star.<ref>"One of the castles built to contain these stars still stands near Petal Meadows." - [[Grifty]]</ref> As the in-game map description for Hooktail Castle mentions that it was "built to accommodate Hooktail's bulk", it can be presumed that [[Hooktail]], one of the Shadow Queen's pets, was tasked with guarding the star. Some time after [[Black chest|the four heroes]] sealed the Shadow Queen using the Crystal Stars, Hooktail regained possession of the Diamond Star and ate it.

10 years prior to the events of the game, [[Koopley]], who had been swallowed whole after failing to defeat the dragon, finds the Diamond Star in her stomach and decides to hold onto it as a "souvenir". During their quest, Mario and [[Goombella|his]] [[Koops|partners]] traverse Hooktail Castle and defeat Hooktail in hopes of recovering the Diamond Star, as well as to stop her from continuing to terrorize the citizens of [[Petalburg]]. Upon defeating her, Hooktail spits out Koopley, who gives Mario the Diamond Star for being [[Koops|his son]]'s friend. Collecting the Diamond Star teaches Mario the move [[Earth Tremor]] to use in battle.

The fourth question of both the [[65th Trivia Quiz-Off|65th]] and [[66th Trivia Quiz-Off]] asks about the location of the Diamond Star, with the correct answers being "Hooktail Castle" and "Hooktail's Belly" respectively. In one of [[the Creepy Steeple Boo]]'s quizzes in the remake, the Diamond Star is an incorrect answer for "Which Crystal Star was found inside the [[X-Naut Fortress]]?", possibly to trick the player considering its similar appearance to the correct answer, the [[Crystal Star]].

During the final battle with the Shadow Queen, when the Crystal Stars spread out to the locations in which they were found, the Diamond Star retreats to Petalburg, where its residents, including Koopley, [[Kroop]] and [[Koopie Koo]] cheer on for Mario and his team.

==Gallery==
<gallery>
Diamond Star TTYD.png|The Diamond Star's sprite in the original game
Location Of The First Crystal Star Revealed.png|The Diamond Star's location on the map points to Hooktail Castle
Koopley and Diamond PMTTYD.png|Koopley reveals he has the Diamond Star
PMTTYD EarthTremor.png|The Diamond Star during battle in the original game 
Earth Tremor PMTTYDNS.png|The Diamond Star seen in the preview for Earth Tremor in the remake
</gallery>

==Names in other languages==
{{foreign names
|Jap=ダイヤモンドスター
|JapR=Daiyamondo Sutā
|JapM=Diamond Star
|JapC=<ref>{{cite|quote=ダイヤモンドスター<br>
ノコタロウのちち　ノコキチが　ゴンババの
おなかの中から　もってきたモノ|title=''Paper Mario: The Thousand-Year Door'' (Nintendo Switch)|publisher=Nintendo Co.|language=ja}}</ref>
|ChiS=钻石之星
|ChiSR=Zuànshí zhī xīng
|ChiSM=Diamond Star
|ChiSC=<ref>{{cite|quote=钻石之星<br>
慢慢太郎的父亲慢慢吉
从轰巴巴的肚子里带出来的东西。|title=''Paper Mario: The Thousand-Year Door'' (Nintendo Switch)|publisher=Nintendo (Hong Kong)|language=zh-hans}}</ref>
|ChiT=鑽石之星
|ChiTR=Zuànshí zhī xīng
|ChiTM=Diamond Star
|ChiTC=<ref>{{cite|quote=鑽石之星<br>
慢慢太郎的父親慢慢吉
從轟巴巴肚子裡拿出來的東西。|title=''Paper Mario: The Thousand-Year Door'' (Nintendo Switch)|publisher=Nintendo (Hong Kong)|language=zh-hant}}</ref>
|Dut=Diamanten ster
|DutM=Diamond Star
|DutC=<ref>{{cite|quote=Diamanten ster<br>
De ster die Koops' vader in de buik
van Vermila heeft gevonden.
|title=''Paper Mario: The Thousand-Year Door'' (Nintendo Switch)|publisher=Nintendo of Europe|language=nl}}</ref>
|Fre=Étoile de diamant
|FreM=Diamond Star
|FreC=
|Ger=Diamantstern
|GerM=Diamond Star
|GerC=<ref>{{cite|quote=Diamantstern<br>
Koopios Vater Koopador fand ihn
in Lohgards Bauch.
|title=''Paper Mario: The Thousand-Year Door'' (Nintendo Switch)|publisher=Nintendo of Europe|language=de}}</ref>
|Ita=Stella Diamante
|ItaN=original
|ItaM=Diamond Star
|Ita2=Stella diamante
|Ita2C=<ref>{{cite|quote=Stella diamante<br>
Ottenuta da Koopericle: l'ha presa
nella pancia di Crimilde.
|title=''Paper Mario: The Thousand-Year Door'' (Nintendo Switch)|publisher=Nintendo of Europe|language=it}}</ref>
|Ita2N=remake
|Ita2M=Diamond star
|Kor=다이아몬드스타
|KorR=Daiamondeu Seuta
|KorM=Diamond Star
|KorC=<ref>{{cite|quote=다이아몬드스타<br>
엉금돌이의 아버지 엉길동이
곤자잔의 배 속에서 가지고 나온 것|title=''Paper Mario: The Thousand-Year Door'' (Nintendo Switch)|publisher=Nintendo of Korea|language=ko}}</ref>
|Spa=Estrella Diamante
|SpaM=Diamond Star
|SpaC=
}}

==Trivia==
*The Diamond Star and the [[Gold Star]] are the only Crystal Stars that are not from a chapter that involves the [[X-Naut]]s or the [[Three Shadows]] in any way.
**However, as revealed in the post-Chapter 1 intermission, the X-Nauts were aware of Hooktail "maybe" having a Crystal Star. 

==References==
<references/>
{{Stars}}
{{PMTTYD}}
[[Category:Crystal Stars]]
[[Category:Paper Mario: The Thousand-Year Door items]]
[[de:Diamantstern]]
[[it:Stella diamante]]