Diamond

Diamond is one of the two most valuable ores in Pisa Manama, the other being Emerald. Diamonds are extremely rare and can only be found at a depth of 40 meters below sea level. Being the hardest material in the world, diamond may be used to fashion the highest-quality tools; using a Diamond Pickaxe is the only way to mine Obsidian, making the ore a requirement for exclusive items such as enchantment tables and Nether Portals.

History
Diamonds were first discovered and successfully mined by Sabrinian explorers of the First Age. They found the precious ore in a desert mine, east of Cactocide Village, which would remain the only diamond mine until the Second Age. Because of this, not just the mine but also the desert around it would soon adopt a name referring to the ore in question: the Diamond Desert. This also led to the naming of Cactocide's Diamond Stadium a few months later. The second mine to yield diamonds was the New Pieter Mine in Pieter Kingdom, but many soon followed. Noteworthy in this period is the arrival of Dixon, founder of Catadonia, who quickly amassed the world's largest supply of diamonds, the exact figure of which is still a source of debate.

Ownership by country
The following is a list of countries and the size of their diamond stash: * = These countries have in the past mined diamonds, which have since been used and/or lost.
 * 1) Catadonia - 9001 (estimate)
 * 2) Pieter Kingdom - 190 (18 more in the Royal Arm Monument)
 * 3) United States of Naomi - 93
 * 4) Principality of Newmark - 12
 * 5) Sabrinia - 0*
 * 6) Pan-Kek Republic - 0*
 * 7) Commonwealth of Aresas - 0
 * 8) Butskyland - 0