Certified Diamond Network

Custom Made & Bespoke Jewellery Store In
Parramatta, Sydney

We welcome you to our beautiful design studio and custom jewellery store in Parramatta, Sydney, Australia, where all of our custom jewellery designs are created and then handcrafted to perfection. At the Certified Diamond Network, we combine an unbiased, expert diamond & gemstone brokerage service with award-winning jewellery design & master jewellery craftsman. This approach will allow you to find your perfect diamond or gemstone in a fun, informative, and hands-on manner. We offer our services Australia-wide and are renowned for going above & beyond expectations because we love what we do.

ESC Stamp

Your Personal Parramatta Diamond

Our lifelong commitment to being one of the best diamond jewellery stores Parramatta has means we go the extra mile. You won’t find a seemingly endless database-driven diamond list on our website. That’s just lazy, and we like to work hard on your behalf. When selecting a diamond or gemstone, you should expect to be presented with a range of options to compare next to one another so you can select the best of the best visually. We offer this service to you obligation-free, and we know it’ll open your eyes to options you may have never even considered before, which is the real advantage of working with an unbiased expert. “No risk, no commitment, no compromise.” – These were the words of a very happy client of ours after he selected his perfect diamond.

Request a Custom Jewellery Quote

Jewellery should feel personal, and if you'd like to experience artisanship of the highest calibre from the leading custom jewellery store in Parramatta, contact us and receive a quote today!


Our work will exceed your expectation

As an accomplished and trusted jewellery shop in Parramatta, Certified Diamond Network provides industry-leading standards of practice concerning all aspects of our custom jewellery design and construction.

Our work will exceed your expectation


Our custom pieces are assembled on-site by award-winning artisan Edward Shwabb at our Parramatta jewellery shop to the highest industry standards.


Each custom piece completed at Certified Diamond Network received unconditional care as it is hand polished to achieve a flawless finish.


At our studio in Parramatta, jewellery is created using ethically sourced stones and secured using the most befitting setting.


As highly skilled custom jewellers, we use the most appropriate method to form each custom piece of jewellery, including lost wax casting.


Collaborate with the finest custom jewellery store in Sydney to design and develop the perfect example of custom jewellery for that special occasion.


We create custom moulds for all client pieces to exact standards at our Parramatta jewellery shop to ensure quality and uniqueness.

Bespoke, One Off, Custom Designed

Whether you’re looking for a custom diamond engagement ringhandmade wedding rings, unique earrings, a one-off custom-designed pendant or any custom-made jewellery design, look no further. This is what we do, and this is our passion.

Edward Swaab is an Award-Winning Jewellery Designer & Master Craftsman with over 43 years of experience and can help turn your jewellery ideas into a unique jewellery design that’s absolutely one of a kind. This is the creative journey we take all of our clients on, making your finished piece of custom-made jewellery all the more personal & special.

Custom Jewellery
About Carl
Why Choose Us

The Best Custom Jewellery Shop Parramatta Offers

With decades of participation and dedication we have veiled as custom jewellers, it stands to reason that we’ve built a strong reputation as being not simply one of the most renowned jewellery stores in Parramatta but the country.

  • Premium Materials Used

    As a leading custom Parramatta jewellery artisan, Certified Diamond Network utilises only the finest quality precious metals and gemstones to create each custom piece.

  • In-House Experts

    Our jewellery shop in Parramatta has been rewarded with quite an incredible team of committed and passionate experts who are always on hand to assist.

  • After-Sales Service and Support

    Certified Diamond Network is unlike many other jewellery stores in Parramatta because our clientele is like family, and we provide a full after-sales and support service for complete peace of mind.

Happy Clients


SHE SAID YES…. And then gasped “it’s better than I could have chosen myself!” as she looked down at the ring. I cannot thank this father and son team enough, they go above and beyond to serve you. So if you are wanting to make your special person feel extra special by going the extra mile then this personalised process will do just that and you will have brownie points in surplus for years to come! Thank you Carl and Edward for making this such a positive experience, Anita keeps smiling in awe of her “beautiful new shiny object” every time she looks at her hand. We can’t wait to have you design our wedding rings for our next chapter!

Greg Goggin

I just wanted to say a big thank you for your excellent Customer service (Carl) and brilliant craftsmanship & advice (Edward)! I absolutely love my ring – the diamond, design and fit is everything I wanted!! I have so many comments every day and I tell them exactly where and who did it! I look forward to seeing you both in the next 8-10 months to get our wedding bands done. Thank you for everything once again!

Bianca Esposito

Hi Carl & Edward, We are thrilled to let you know that Jarrod popped the question (and I said yes) during our holiday in Africa. I absolutely love the ring – it is stunning and even more beautiful than I anticipated. Thanks so much to both you and Edward for an amazing piece, one which I will treasure for a lifetime. Many thanks

Annette Cameron

Hi Carl and Ed, I just wanted to say a huge thank you to Ed and yourself for all your hard work and being able to complete the ring in time. The finish is amazing and I couldn’t have hoped for a better design and finished piece. Thank you for all your help and advice throughout the process, it made it easy, fun and put me at ease knowing your expertise and high standards you set for yourselves. Tyrolin absolutely adores the ring as well as the little touches such as the saw piece and it fits perfectly! She said she couldn’t have hoped for a better proposal and ring. Many thanks

Alex Wright

Hi Carl, ABSOLUTELY OBSESSED WITH MY ENGAGEMENT RING! Daniel & i went through the whole process together with Carl & Edward from sourcing the perfect diamond to designing the ring around our phenomenal diamond. Carl went above & beyond to ensure the diamond was everything i had hoped for and more. Edward spent hours working with us on a unique design just for us, his craftsmanship is out of this world, everyone who’s commented on my ring has said its the best they have ever seen and they’re not wrong Edward’s work is phenomenal and he doesn’t stop until he has created the perfect masterpiece! Thank you both so much!!

Hayley Sireilles

Hi Carl, Obviously it all went to plan. She loves it and the size was spot on. Just wanted to say a big thank you to you and Edward for the exceptional service that you guys provided. Absolutely second to none. Will be in for the wedding bands for sure. Cheers

Jarrod Alati

Hi Edward and The Team, I have been meaning to write this for some time now and I apologise it’s taken so long. I must say a huge thank you to you for your work on my engagement ring. Your design is exquisite, beautiful, stunning! The list could go on as the ring is truly amazing! I have had so many comments on your design and it is far better than I could have ever imagined.

Kristy Haggett

Hello Carl, I have been meaning to email you since I received my ring from David to tell you how much I love it. Thank you to you and Edward. Thank you also for your frank advice about what size the shoulder diamonds should be, they look wonderful at 0.75ct. The setting is absolutely perfect too. There is not a day that goes by without people commenting. I love it so much, so thank you.

Bronwyn Hartigan
About Edward

Request a Free Consultation at Our Jewellery Store in Parramatta Today!

Request a Free Consultation at Our Jewellery Store in Parramatta Today!