The Moffat County “Diamond Fields” hoax

Moffat County in Colorado’s northwest corner is home to one of gem collecting’s most notorious gemstone mining frauds. The Great Diamond Hoax a notorious frontier gemstone mining fraud that made scandalous headlines across the country in 1872. The 1860’s and 1870’s saw many exciting foreign discoveries of diamonds, rubies, and sapphires. It seemed the United States had a precious gemstone bonanza of its own in 1872 when two prospectors arrived at the Bank of California in San Francisco. Philip Arnold and Jack Slack, cousins and native Kentuckians, deposited a canvas bag containing the purported fruits of their latest prospecting venture… … Continue reading