Ring of Ogre: 1-2 stones
Ring of Demon: hard to get with stones if some1 will trade it will be around 40 stones but im not sure
DM+2: easy with 2-3 stones
DM+3: around 7-9 stones
Ring of Mage: 1-2 stones
Ring of Grand Mage: not sure maybe same as demon ring
MS12 Necklace: easy 2-3 stones
MS14 Necklace: around 7-9 stones
Low MP M/W Gear(7%, 14%, & 21%) easy 1-8 stones
Low MR M/W Gear(21%, 28%, & 35%) easy 1-6 stones