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In-store shopping is ideal if you want to see pieces in person and compare options with guidance. Many jewellers can advise on fit, styling, care, and gift ideas while you browse.

Diman Co Jewellers is a Kogarah family jewellery business representing three generations of the Heszberger family. The company traces its jewellery tradition to 1966 and combines design, diamond and gemstone sourcing with hands-on manufacturing, giving customers access to a family team whose roles cover both the creative and technical sides of the trade.
Susan Heszberger is closely associated with design and the visual direction of pieces, while Steve Junior oversees workshop and manufacturing work. Steve Senior remains connected with the business and its quality standards, continuing the experience developed through decades of wholesaling and retailing.
The business works with diamonds and precious gemstones sourced through international suppliers and focuses on fine jewellery made to a high standard. Custom design is a natural part of this model because the family can manage design ideas, stone selection and manufacture within the same business rather than separating those stages.
Diman Co also carries finished diamond and gold jewellery for customers who prefer to choose a completed piece. Its Kogarah store gives local customers a physical point of contact for discussing significant purchases and comparing options in person.
For customers looking for a smaller independent jeweller, Diman Co’s main strength is continuity across generations and direct involvement in making. The business is not simply a sales outlet for finished jewellery: design, workshop oversight and sourcing knowledge remain part of the family’s day-to-day role, helping clients create or choose pieces intended to last beyond a single occasion.
Below is an overview of the jewellery services offered by this store.
In-store shopping is ideal if you want to see pieces in person and compare options with guidance. Many jewellers can advise on fit, styling, care, and gift ideas while you browse.
Share what stood out, from service and pricing to the finished piece. A quick review helps the next shopper know what to expect.
Monday
8:30 am - 5:00 pm
Tuesday
8:30 am - 5:00 pm
Wednesday
8:30 am - 5:00 pm
Thursday
8:30 am - 5:00 pm
Friday
8:30 am - 5:00 pm
Saturday
8:45 am - 1:30 pm
Shop2/86-88 Railway Parade, Kogarah NSW 2217

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