Business Details
50+ Years
experience
Custom Jewellery & Diamond Brokerage in Parramatta
Certified Diamond Network has been crafting bespoke jewellery and providing diamond brokerage services since 1974. Founded by award-winning master jeweller Edward Swaab, our studio combines decades of expertise with a commitment to sourcing the highest-quality diamonds and gemstones. We specialise in creating custom engagement rings, wedding bands, and fine jewellery that reflect each client's unique story.Our team prioritises transparency, using only materials within the top 10% of visual quality and offering obligation-free consultations to guide clients through every step of the design process. With a focus on craftsmanship and client satisfaction, we deliver timeless pieces designed to last generations.
Services
Custom Jewellery Design
Diamond Brokerage
Gemstone Sourcing
Engagement Rings
Wedding Rings
Handcrafted Jewellery
Diamond Consultation
Details
- Year established: 1974
Highlights and features
- We offer over 40 years of experience in bespoke jewellery design.
- Our team includes award-winning jeweller Edward Swaab.
- We provide a diamond brokerage service sourcing top-quality gems.
- We use only the finest materials within the top 10% of visual quality.
- We offer in-house experts for custom designs.
Associations and certifications
- Q-report Jewellery Insurance
What people say
Exquisite craftsmanship
Personalised service
Knowledgeable staff
Unique designs
Transparent process
Services
Custom Jewellery Design
Our custom jewellery design service creates one-of-a-kind pieces tailored to your story. Clients collaborate directly with master jeweller Edward Swaab to conceptualise and craft unique engagement rings, wedding bands, and fine jewellery. Using premium materials and handcrafting techniques, we ensure each design reflects personal significance while maintaining exceptional quality and durability.
Diamond Brokerage
Our diamond brokerage service sources high-quality diamonds and gemstones from trusted suppliers. We specialise in white and fancy-colour diamonds, including pink, blue, and yellow varieties. Clients receive expert guidance on cut, clarity, and visual performance, ensuring informed choices. Stones are critiqued in-house to verify quality before final selection.
Handcrafted Engagement Rings
Handcrafted engagement rings are designed with precision and artistry. Each piece combines technical excellence with emotional significance, using ethically sourced diamonds and gemstones. Our process includes detailed consultations, hand-drawn sketches, and 3D imaging to achieve designs that symbolise lifelong commitments through enduring craftsmanship.
Gemstone Sourcing
Gemstone sourcing focuses on rare and high-quality stones like sapphires, rubies, and emeralds. We evaluate each gem's visual properties, ensuring optimal brilliance and durability. Clients benefit from transparent education on grading factors and direct access to a curated selection, enabling choices that align with both aesthetic preferences and investment goals.
Diamond Consultation
Diamond consultations provide hands-on education and unbiased advice. Clients explore technical and visual aspects of diamonds, including light performance and cut quality. Our experts guide decisions based on individual budgets and preferences, offering obligation-free sessions to compare stones and understand their unique characteristics before purchase.
People
Edward Swaab
Master Jeweller & Founder
Edward Swaab, with 44 years of experience, is an award-winning jeweller renowned for handcrafted designs. He established Certified Diamond Network in 1974, specialising in bespoke engagement rings and fine jewellery. His expertise in diamond grading and innovative techniques has earned industry recognition, including Apprentice of the Year.
Carl Swaab
Jewellery Expert
Carl Swaab collaborates with clients on diamond selections and design concepts. With extensive knowledge of gemstone properties and market trends, he ensures each piece meets exacting standards. His approach combines technical expertise with a focus on creating meaningful, client-centric jewellery solutions.
Questions
Why choose Certified Diamond Network for jewellery?
We offer bespoke designs, expert craftsmanship, and transparent diamond sourcing. Our 40+ years of experience ensure high-quality, custom pieces tailored to your story.
How much do custom engagement rings cost?
Prices vary based on gemstone, metal, and design complexity. We work with diverse budgets, ensuring value through direct diamond brokerage and handcrafting expertise.
Do you create handmade jewellery?
Yes. Every piece is handcrafted in our Parramatta studio by master jeweller Edward Swaab, ensuring quality and attention to detail in every design.
What areas do you serve?
We primarily serve Parramatta and Sydney, with clients Australia-wide. Custom designs are available through in-person, phone, or email consultations.
How long does custom jewellery take?
Custom pieces typically take 4-6 weeks from consultation to completion, allowing time for design refinement and meticulous handcrafting.
Can I view diamonds before purchasing?
Yes. We provide obligation-free consultations where you can compare diamonds and gemstones, ensuring informed decisions based on visual and technical evaluation.
Reviews (6)
C. Ws
Jan 10, 2022
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Carl and Edward have provided the most fantastic service over an almost three year period.
Having contacted them initially to source a birthstone for our second child, they have been integral in helping us to crystallise the ideas around a wonderful ring that incorporates stones for all three children. They have been easily available, even throughout the pandemic, and went above and beyond to help us get this done on time for an important milestone. I would highly recommend the Certified Diamond Network.
Having contacted them initially to source a birthstone for our second child, they have been integral in helping us to crystallise the ideas around a wonderful ring that incorporates stones for all three children. They have been easily available, even throughout the pandemic, and went above and beyond to help us get this done on time for an important milestone. I would highly recommend the Certified Diamond Network.
Micaele Ryan
Dec 24, 2021
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Highly recommended. The knowledge and craftmanship of Carl and Edward is spot on. I now own an absolutely stunning ring. You will not be disappointed.
Ethan Adam
Oct 13, 2021
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Fantastic service and communication with the final quality being unbelievable. During the Pandemic and not being able to meet in person the team was fantastic in communicating to me and assisting in selecting the best diamond with the specifications given and the design and final product exceeded all of my expectations. All around a great experience that has left me and my Finance smiling from ear to ear and both of us with a knowledge of the diamond and ring and how to care for both.
Gary Pan
Jul 15, 2021
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What a dynamic duo Carl and Edward are in their individual crafts.
Carl took the time to patiently explain to me the properties of specific gems which enabled me to make an informed decision about what stones to select for a "daily wear" ring. After my selection Carl went about utilising his entrenched network of suppliers to source the highest quality stones in the precise size, shape and colour for the intended design. The design phase was an absolute pleasure with Edward. After trading ideas and diagrams, the final design put forward by Edward was exactly what I had envisioned. The gem
Carl took the time to patiently explain to me the properties of specific gems which enabled me to make an informed decision about what stones to select for a "daily wear" ring. After my selection Carl went about utilising his entrenched network of suppliers to source the highest quality stones in the precise size, shape and colour for the intended design. The design phase was an absolute pleasure with Edward. After trading ideas and diagrams, the final design put forward by Edward was exactly what I had envisioned. The gem
Victoria Civils-Wood
Jun 17, 2021
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I chose Certified Diamond Network to have a custom dress ring made because they were a family business that had been around a long time. What a great decision. From my very first phone enquiry, Carl took a lot of time with me to talk about the many options. From Carl finding a shortlist of gems for me to look at, to Edward sitting with me to discuss and design every element, and receiving sketches and updates along the way, the process was clear and painless. These gentlemen really know their craft. The finished product is exquisite and a talking point every time I wear it. I thoroughly recommend
Ryan McCarthy
Feb 28, 2021
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Wow what an easy, no hassle experience. I don't know where to begin - Referred to Certified Diamond Network (CDN) by a friend who spoke highly of them. I never once had to look anywhere else as the moment I spoke with Carl on the phone everything started to fall into place. After working with Carl to pick an absolute gem of a gemstone, things just got better from there. From being involved at every step of the design journey and reviewing Edwards early designs of the ring to being involved in minor tweaks towards to the end that just made the ring even better. My Fiance absolutely adored the ring
