J Gem Investment Jeweller in Sunbury has been serving the community for over 30 years as an award winning designer jeweller. The finest workmanship is carried out on all repairs and remodeling work in our own studio. Our custom made pieces are of the highest quality to suit the clients taste and lifestyle, whether it is gold or silver, diamonds or gemstones. We have an extensive range of jewellery including all the latest brands like Thomas Sabo, Najo, Australian Chocolate Diamonds and Eternity. Lisa and John are your local diamond experts and as Antwerp Diamond Brokers are able to source amazing diamonds for their clients.