All the Stones are found underground and are Very Rare before the National Dex and Uncommon after the National Dex.
its good to use evolution stones as they make you're Pokemon stronger, but use them carefully, there are only a limited amount of each stone in the game.
i don't no ha ha --> actually, you can.. just buy a stone you want.. then choose the Pokemon that needs a stone to evolve then press evolve.. that's just it ! you lose 1 stone each evolution... :) thanks.. hope this helps..
shier piller
18, one for each type
There is no such thing, BUT.. you can do each Pokemon one-by-one
neither of them is better, they are both the same, but in diamond, you catch dialga, and in pearl, you catch palkia, and you can catch different Pokemon in each game for example: you can catch this Pokemon in diamond, but not pearl but: you can catch this different Pokemon in pearl, but not diamond
A diamond is valued by its cut, clarity, carat weight and colour. A local jeweler can show you diamonds stones and give you a price for each one.
One each.
Do you mean trade from Diamond to Platinum?? If so, you need two ds's and a copy of each, sorry bad answer.
Some diamond producers engrave stones so as to make each stone more uniquely identifiable. The engraving should have documentation with it that details who engraved it and where the engraved data is stored.
fire stone evee
You can get it by talking to Dawn/ Lucas's sister in Pearl or Diamond. Each day they tell you a different species of Pokemon is swarming, and where to find it. The Pokemon changes each day, so Cubone will eventually be swarming, if it isn't today.