Niue, a sovereign state in free association with New Zealand, uses two official legal tender currencies. The New Zealand Dollar is the circulation currency for daily transactions, while the government also authorises legal tender coins in the Niue Dollar currency for collector's purposes.
A number of mints issue a large variety of commemorative, bullion and collector coins under the authority of Niue. These coins are dedicated to historical or general popular culture themes not related to Niue itself.
Some coins are marketed in standard bullion sizes, like half ounce silver, one ounce silver etc, and some of those are also denominated as $1, for which see respective lists. This coin, denominated as One Niue Dollar, is not in a standard ounce-based size and is made using a "smartminting" technique - meaning that it has features not generally found in circulation coins.
The Mint says about this coin:
The aim of lawmaking is for the state to uphold justice. Leaders should make sure that no one can do harm to anyone else. This idea, originating from Roman law, materialised over time in the form of Iustitia. The heavily symbolic silver coin will make an excellent guide post for people who want to always follow the letter of the law in their lives. | 
Search for Niue: One Dollar Silver 2022 Aureus Iustitia on eBay 
