YGGDRASIL gold had multiple uses, such as a medium of exchange for purchasing items, guild house maintenance, as a component in magic scroll and potion manufacture. It's current form has the profile of a woman, possibly a Valkyrie. Originally, the gold coins had the face of a man sealed upon them, before Valkyrie’s Downfall Event. In the past, YGGDRASIL's coins went through two conversions. Unlike the inhabitants of the New World, players used only one type of metal as currency: Gold.
On the other hand, according to the Web Novel, YGGDRASIL currency of 1 gold was estimated to be worth the estimated value of 1,000,000,000 yen in the real world. One gold coin is also equivalent to 100,000 yen. If you converted the price of a copper coin from the New World into Japanese Yen, its worth would be about 1000 yen. The exchange rate between the Re-Estize Kingdom and the Baharuth Empire is 1:1. New World Mint: Gold Silver Copper Seals Exchange Rate Some countries used gemstones to make a type of extremely high-value currency called gem coins, or they made coins of mithril or adamantite, or “gold plaques” which had value beyond their weight. If gold coins were too heavy to be used as payment, big transactions were typically made with gemstones and the like. And on the other side is the symbol of the merchant guild that issued the currency. In the Web Novel, all Trade of Currency, was said to be marked with the symbol of the God of Business which is the wheel. Trade between nations exists through numerous official and unofficial channels platinum in particular is used in international trade. Trusts in the form of metallic plates are used by the banks within the Empire, similar to that of a cheque. For example, the Imperial Bank located in the Baharuth Empire. In addition to that, there does exist financial institutions supported by the government. Platinum coins were rarely used with the exception of merchants and nobles.
About 1/4 of the copper coins were made from brass. In the New World, four primary metals are utilized as the monetary standard and valued in increasing value: Copper, Silver, Gold, and Platinum.