Glenn Spiro founded the G London Jewelry House. Spiro started as a student jeweler and developed experience with Christie's auction house. He was born in East London and began in jewelry at 15 years old starting at the English Art Works, a workshop owned by Cartier. After finished at the workshop he took an internship in Hatton Garden apprenticing as a jeweler before opening a workshop in Farringdon at the age of 21. From 1994 to 2002 he worked part-time in the Christie's Jewelry Department. Then he decided to create his own brand on Grafton Street where the started to work by appointment. Business continued to grow and Spiro added to his staff.