Sapphire Topknot

The Sapphire Topknot is one of the 130 treasures in Wario: Master of Disguise. It is #1 in the blue catagory in Wario's catalouge, saying that "No true samurai would leave his house without one of these placed firmly atop his pate. The gem sparkles on his bald head, blinding all foes." Because of that, the retail price is $5099. It can be found in Episode 1.