|Series||Husband's Tears Series|
|Maximum carriers||10 Pikmin|
|Location||Citadel of Spiders|
|Challenge Mode levels||Trampled Garden, Cryptic Cavern, Cavernous Abyss, Three Color Training, The Giant's Bath|
The Regal Diamond (ロイヤル・ダイヤモンド?, lit.: "Royal Diamond") is a treasure in Pikmin 2. It is a clear, fashioned diamond. The jewel is found on the last (fifth) sublevel of the Citadel of Spiders, and is completely buried in the ground. Go to the area with some Glowcaps and an Iridescent Flint Beetle and toss White Pikmin onto the ledge in which the treasure is buried, which can be identified using the Treasure Gauge. They'll dig it up, and there should be no hassle transporting it back to the Ship's Pod.
An earlier artwork of the treasure from the official Nintendo Pikmin 2 page shows the Regal Diamond with a blue tint.
Names in other languages
|French||Diamant Royal||Regal Diamond|
|Italian||Diamante reale||Regal Diamond|
|Spanish||Diamante real||Regal diamond|
|Spanish (NoA)||Diamante real||Regal diamond|