Core Bullion is rated 3 out of 5 in the category luxury goods & jewelry. Read and write reviews about Core Bullion. Core Bullion was founded by Nigel Doolin to offer the very best, private and secure way to buy or sell gold Bullion and Coin. With over a decade in precious metals trading experience, Nigel has not only headed up one of Irelandʼs most successful Bullion companyʼs, but also been at the forefront of simplifying the purchase of precious metals to the Irish market.