JoseMontilla

Get a Kain's Lance (made from the Dragoon Lance, Shamanic Spear, Punisher, Pandoran Spear or Gale Bolg). Upgrade the Kain's Lance to maximum level (at a cost of approximately 1,5000,000 gil) and then dismantle it. You'll Obtain three Trapezohedrons, tripling your initial investment. You will also get 36 Moonblossom Seeds at the same time, worth 216,000 Gil. You can do this with a Nirvana (made from the Tigerclaw, Healer's Staff, Belladona Wand, or Mistilteinn) as well.