Born in Te Awamutu in 1941, Preston completed a Master of Science degree in psychology at the University of Canterbury in 1967, and took jewellery classes at the Camden Institute, London, in 1973.
[1] In 1974, after a stint as a guest artist at Brown's Mill Market, New Zealand's first craft co-operative, in Auckland, Preston approached jewellers Ruth Baird, Roy Mason, Margaret Philips and Michael Ayling to open a jewellery shop called Fingers on Auckland's Lorne Street.
[2] Fingers, which moved to Kitchener Street, its current location, in 1987, is now New Zealand's longest-running contemporary jewellery gallery.
[1] In 1983, Preston and fellow jeweller Warwick Freeman were asked by James Mack, then director of The Dowse Art Museum, to select items from Auckland Museum's collection for a 1984 exhibition at The Dowse titled Pacific Adornment.
[5] Preston's work has been shown widely in New Zealand and internationally, including solo exhibitions at the Dowse Art Museum in 2007, the Auckland War Memorial Museum in 2009, and inclusion in the touring exhibition Wunderrūma: New Zealand Jewellery in 2014.