The item ID for a diamond pick in Minecraft is 278. I have linked you below in the related links of a full list of all the ID's in Minecraft.
Minecraft's Item ID's can be found on Minecraft Wiki. Link in related links.
The item id for diamond in 1.3.1 is 264. If you want to see all data values and ids in Minecraft go to the link below.
The data value or item ID for Dragon Eggs is 122.
the item ID for gold is 14
Assuming you mean the item ID, it's 355.
114 or 116. something like that :D
There is no Item ID for experience orbs in Minecraft. It does not go in your inventory, or you can't hold it in your hand. BUT you can use "Bottle of Enchanting" though, which is a potion that gives you experience, the same effect of an experience orb, it's ID is 384.
their is no ID for your Minecraft hand.
Every major update to Minecraft the id's on some items change. Go to the the MinecraftWiKi and they will have the updated list. Or you can change your mode from survival to creative mode and just use the item you want.
Sugarcane has 2 data values (IDs) on the PC edition of Minecraft, a block data value, and an item data value. The data value for the block is 83, while the data value for the item is 338.
Unless you mess with the game files, you can't change the ID of items. However, you can change the item names by placing the item in the anvil and naming it to whatever you want.