in vielstone city
it is at the cavern falls and diamond heights, you have to complete the quests and you'll get the part of the key........... hope it helped :)
The second amber key is in Diamond Heights and the first one is in Cavern Falls.
diamond head
Diamond has a much greater refractive index than glass. When light falls on a diamond piece, it is reflected inside the piece many times. This makes the diamond shine.
Diamond dust is not an item. It falls on January 12th in Snowpoint City. Why January 12th? January 12th is Junichi Masuda's birthday. He's the creator of the Pokemon games. To see the diamond dust go to Snowpoint City on that day, run out of it and then run back in and wait. After several seconds the snowfall will stop and you'll see the diamond dust! It's pretty cool, so you should check it out.
Any diamond that 'falls apart' when removed from a setting is either already separated, or may not be a diamond. True gemstones survive over hundreds of years of being re-set, without 'falling apart'. Best practices dictate that you take the pieces to a gemologist, who can explain what has happened.
A sand trap :) put diamond block then when the player breaks the block the sand falls and suficates him/her, there is a video on how to make the trap
you can find it under ground in poke'mon diamond, pearl and platinum. in ruby sapphire and emerald you find one meteor falls.
Igneous rocks are the category of rocks that contain diamonds. The two types of igneous rocks that form diamonds are kimberlites and lamproites.
I found one part at cavarn falls and the other part is supposed to be in the ATM at diamond hights. The last piece you get when you turn 14.
Id guess cave in, collapsing tunnels is all i can think of.