Wholesale Diamonds Sydney - Certified Diamond Network

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Certified Diamond Network > Diamond Properties

Discover What Makes Diamonds Special

To help you on your journey of discovery into the world of diamonds, we’ve put together a comprehensive diamond buying guide on the technically graded details you’ll find in an independent diamond grading report, and how they translate, impacting the loose stone visually. Our advice to you as your personal wholesale diamond broker is to read through the ‘technical’ information and gain a basic diamond education to fine-tune your search parameters. It’s impossible to become an expert overnight, and this is why we work side by side with you as your unbiased industry expert. We will be more than happy to answer any of your questions and encourage you to challenge our knowledge as experts in the industry. To fast track your diamond education and find your perfect stone, please contact us for more information and we’ll be happy to answer any of your questions.
designer engagement rings sydney - certified diamond network

Personal and Unique Touch

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From selecting the perfect gemstone to choosing the design elements, you have complete control over every aspect of the ring, ensuring a 100% original piece guided by an award-winning designer.

quality diamonds sydney - certified diamond network

Uncompromising Quality

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Our jewellery is handcrafted on-site in our studio workshop by master jewellers using only the finest materials, ensuring we meet the highest standards of beauty and durability, providing you with a timeless piece that will last a lifetime.

Certified Diamond Network Leadership

Expert Guidance

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With decades of experience, our master jeweller, Edward Swaab, is renowned for crafting handmade rings of timeless beauty; therefore, we are ready to guide you with concepts and design ideas to help you bring that piece you have in mind to life.

Request My Free Quote

Discover the personalised experience that Certified Diamond Network offers by requesting a free quote today. Whether you’re envisioning a custom-made engagement ring or a bespoke piece of jewellery, our team is here to help.

Your Personally Curated Diamond Selection

Discover the unique and beautiful world of diamonds with us. Each stone we source for you is carefully shaped & cut to uncompromising quality standards to unlock it’s true inner beauty.

What Do Our Customers Say?

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

Ready To Design A Handmade Engagement Ring?

Trust us to help you create a bespoke engagement ring that is as unique and extraordinary as your love. Visit us in Parramatta, call us at (02) 9689 3396, or contact us today to start designing the ring of your dreams.

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Frequently Asked Questions

What are the properties of a diamond?

Diamonds have unique physical properties such as unmatched hardness, high strength & durability, high reflectivity & refractivity, excellent thermal conductivity, and electric insulation. Diamond is one of the allotropes of pure carbon.

Do diamonds have any special properties?

Diamond’s unique optical and physical properties give it the highest possible lustre of any transparent gemstone. Diaphaneity refers to a mineral’s ability to transmit light, and no other gemstone will display a diamond’s unique light performance qualities.

What are the graded characteristics of a diamond?

To select knowledgeably, you need to understand the basics of diamond grading and their impact on price due to rarity. In order of price impact is; Shape, Weight, Cut (Proportion, Polish, & Symmetry), Clarity, Colour, and Fluorescence.

What does the diamond symbolise?

Diamonds symbolise love, commitment, strength, purity, and eternal beauty. They are popularly chosen for engagement & wedding ring jewellery due to their hardness, durability, and longevity when worn daily.

What is special about diamonds?

Diamonds were formed long ago, roughly 1 billion to 3.5 billion years ago (up to 75% of the earth’s age). Diamonds are the hardest natural substance known to man and like any gemstone, each have their unique identifying fingerprint.

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

Begin your journey to creating a piece of jewellery that’s uniquely yours with a free consultation at Certified Diamond Network. Our expert team is here to listen to your ideas, answer your questions, and guide you through the process of designing a one-of-a-kind piece.