Gemstar Husband

The Gemstar Husband is a treasure in Pikmin 2 that is actually a plastic gold ring with a green coloured star in the center. It's found buried on the 3rd sublevel of the Frontier Cavern, so White Pikmin are needed to get it. It is the 119th treasure on the List of Pikmin 2 treasures in the NTSC version and the 118th in the PAL version.

Captain Olimar's Journal
"A captain views his ship as a brother and a partner, someone he can trust with his life. It's crucial for them to develop an unquestionable, unfaltering trust. But I refuse to believe that this simple trinket is some kind of living gem. That's insane!"

Sales Pitch
"Once again, daydreams come alive! This is not just a fine gem, but a rare, inorganic life-form."