Xennox Diamonds Verified listing

Xennox Diamonds is a Brisbane family jewellery business founded in 1976 by Wolfgang and Georgette Schwantes. Their son Karl later joined the business and now leads a team focused on custom diamond jewellery, engagement rings and wedding pieces. After five decades in Brisbane, Xennox remains family run and operates from a Queen Street showroom with an onsite workshop.

Bespoke design is a major part of the business. Clients can work with designers and craftspeople to develop a ring or other piece around their own preferences, using CAD and other contemporary design tools alongside traditional bench skills. Xennox works with both natural and lab-grown diamonds, and its diamond specialists can help compare stone shapes, qualities and settings before manufacture begins.

The workshop team includes experienced jewellers and diamond setters, with the business reporting more than 150 years of combined trade experience across its specialists. Xennox has also received multiple national design awards, reflecting a long-standing emphasis on one-off design and technical craftsmanship.

Engagement and wedding jewellery are the core focus, but the studio also produces pendants, earrings and other diamond pieces. Each Xennox-made piece includes a manufacturing guarantee, while professional cleaning is offered as part of its ongoing care approach.

For customers looking for a Brisbane jeweller with substantial history but direct workshop capability, Xennox combines family ownership, diamond expertise and modern custom-design technology. Its long presence in the CBD is supported by a business model that keeps design, diamond selection and manufacture closely connected.