What is the #1 rarest block in Minecraft?
The Rarest of Them All In the hierarchy of rare blocks in Minecraft, Emerald Ore, and Diamond Ore reign supreme. Emerald Ore, the cornerstone of trading with villagers, is a precious find in mountain biomes. Emerald ore can be found extremely rarely in two-block veins, but usually appears as small, single-block ores. Emerald ore is about 30 times rarer than Diamonds, mostly because they are only available in Extreme Hills biome.Emeralds and sapphires are both precious gemstones and are both equally rare. If you are looking for eye-clean clarity emeralds, as these are extremely rare, they can cost upwards of $20,000 or more. Sapphires on the other hand, while rare in their diverse spectrum of colour, are a lot more of an affordable gemstone.