In the earliest years of Yogo sapphire mining, before Yogo sapphires achieved their own reputation, Oriental sapphires were sold in Montana with claims they were Yogo sapphires, while in Europe, Yogo sapphires were sold as Oriental sapphires. However, Yogo sapphires became notable in their own right. Paulding Farnham (1859–1927) used Yogo sapphires in several jewelry pieces he designed for the 1900 Exposition Universelle in Paris, where Yogo sapphires received a silver medal among all gems for color and clarity. An entry of uncut loose Yogo sapphires also won a bronze medal at the 1904 Louisiana Purchase Exposition in St. Louis, Missouri. Farnham was the creator of the most elaborate piece of jewelry ever made with Yogo sapphires, the life-size Tiffany Iris Brooch, a brooch ornament, which contains 120 Yogo sapphires set in platinum, and sold on March 17, 1900, for $6,906.84. In 1923, First Lady Florence Harding was given an "all Montana" ring made from a Yogo sapphire and Montana gold. In 1952, Gadsden gave cut Yogo sapphires to President Harry Truman, his wife Bess, and their daughter Margaret. Many Yogo sapphires were also sold in Europe, as some Yogo mining was conducted by British interests. Yogo sapphires may have been in the personal collections of some members of the British royal family in the 1910s, but promotional claims that Yogo sapphires are in any of the crown jewels of England cannot be conclusively proven or disproven. Claims that the gem in the engagement ring of Lady Diana Spencer and Kate Middleton is a Yogo are dubious; the gem is thought to be of Sri Lankan origin. The story that the gem is a Yogo can be traced to a 1984 "Los Angeles Times" article that described the ring as a sapphire, and quoted Intergem president Dennis Brown's claim that the gem may have come from a British-owned Yogo mine.