This achievement is available to obtain in an achievement world I have built.
Simply use this link
https://bit.ly/2Vm9y97 to access a dropbox folder where the world is. The world's name is "Achievement World 1.19.0". For Windows 10, download the .mcworld file and simply import it into Minecraft.
When the world is downloaded, start it up. You will spawn at the start of the "achievement path" so for this specific achievement, look to the left where the teleport buttons are and teleport to "Village & Pillage Update 1.11.1". This will take you straight to the updates achievements, in this case only the one achievement. There will be a button that gives you 1024 emeralds and buttons to spawn and kill as many villagers as you need to trade with.