18kt yellow gold 17" oval link chain by Links of London with heart charm. Links of London was a British jewelry and accessories brand and retail stores founded in 1990 by John Ayton and Annoushka Ducas; the company closed around 2020. They were known for unusual sterling silver cuff links, bracelets, etc. and expanded into more luxurious metals like 18kt gold in the late 2000s & 2010s.