From Pikipedia, the Pikmin wiki
The Priceless Statue (えらそうでえらい石像?, lit.: "Authoritative-Looking And Actually Authoritative Stone Statue") is a black chess queen, found in Pikmin 2. It is found in the sixth sublevel of the Frontier Cavern and may be on the ledge near the hole to sublevel 7, or in the water. Use Red and Blue Pikmin to get it, or use the Bulbmin that can be found in the sublevel. Defeat the Cannon Beetles and Water Dumples that may be in the way.
“This statue features an astounding degree of detail. It looks a lot like a present I gave my mom for Mother's Day. I miss her...sometimes.”
“This stone carving was lined up with others as if they were meant to protect something. Proof of a megalithic civilization! (I am unsure about that, but bluffing is paramount.)”
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