Thieves Guild, this is located under the bar in Burthorpe ( Reached by Games Necklace ), robbing the safe there gets you them as random loots only random to coins, you may need a certain thieving level.
Ask some players through out runescape
get any jewels and a chisel and with the right crafting level you can cut them!
you can find jewelery, jewels, and seeds.
easy, look at YouTube!
Train your skills.
Get one by TeleGrab in Varrock Bank Dungeon.You can get other cheap jewels as well like Ruby Ring.
If things were that easy, there'd be no point playing Runescape.
The game runescape starts out at any easy level. If you want to progress and become successful, you will need to play more often and the difficulty will increase.
Be a jewelcrafter and miner: you can get jewels from the ore.
There is no cheat engine for runescape. What is the point in cheating anyway?, Where is the fun in that?
To steal in runescape you just simple go up to a "man" and pickpock him. :) it's that easy. :)
buy from grand exchange