Another item similar to the emerald + end dimension ore

Minecraft used to have rubies to trade with villagers, and I suggest adding them back. The ruby will be slightly different from the emerald ,since while the emerald can be acquired by trading, the ruby will only be accessible by mining in the End, with a slightly lower rarity than the diamond in the Overworld. Because of this rarity, the ruby will be more valuable then the emerald in trades.