Could we have a grass to diamond vendor villager as well as a grass/diamond to quartz (not block) vendor
Grass already comes in donor 25+ kits and you can buy them for real money or trade for some in game Diamonds come in 100+ donor kits and you can also buy those for real money at the shop. Adding diamonds to warp donor means more people can probably access diamonds and the diamond value is already dropping; this would drop it further. No support :| (more off topic: also I have been dying for warp grass or warp donor to add a variety of stained clay lol)