The article discusses the 'rarest £2 coin' that collectors are advised to look out for, particularly a coin minted in 2002 that commemorates the Commonwealth Games held in Northern Ireland. With a limited mintage of 485,000, this coin stands out for its historical significance and potential value in collector circles. Furthermore, the article notes that while some rare coins can fetch prices significantly higher than their face value, not all rare coins translate to high monetary worth. The rarity and demand for certain coins can fluctuate, and collectors are always on the lookout for those that hold the most value, both sentimentally and financially. The expert interviewed in the article, who engages with a significant following on social media, emphasizes the coin's importance and encourages collectors to check their change for this particularly notable piece. This ongoing interest in rare coins reflects a broader fascination with numismatics and the stories that such items hold from within a nation's history.