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Business Details
28 Years
experience
Custom Jewellery Design Sydney
Mark Nathan Jewellery has been crafting exquisite diamond engagement rings and fine jewellery pieces for over 25 years. Founded on a family legacy from London's Hatton Garden, our Sydney-based business combines generational expertise with modern design innovation. Clients benefit from direct diamond sourcing as a wholesaler, ensuring exceptional quality at competitive prices. Our private showroom experience prioritises personalised service, with every consultation tailored to individual preferences and visions. We specialise in custom-designed pieces, heirloom redesigns, and precision diamond grading using industry-standard 4Cs analysis.

As finalists in the Diamond Guild Australia Jewellery Awards, our commitment to excellence is internationally recognised. We maintain strict quality control through GIA and DCLA laboratory-certified diamonds, ensuring authenticity and client confidence. Our streamlined process includes expert material selection, bespoke design consultations, and lifetime jewellery maintenance guidance. With a focus on Sydney's jewellery district, we serve discerning clients seeking both timeless classics and contemporary statement pieces. Our team's extensive experience in diamond setting and gold polishing guarantees precision in every creation.
Services
Engagement Rings Wedding Bands Diamond Jewellery Custom Design Heirloom Restoration Diamond Certification Jewellery Repairs Bespoke Menswear Eternity Rings Pendants & Earrings
Details
  • Year established: 1998
Highlights and features
  • We offer 25+ years of bespoke jewellery design experience with family heritage in diamond setting
  • Our private consultation process ensures undivided attention for custom design development
  • Direct diamond wholesaling provides access to premium stones at competitive prices
  • We maintain strict quality control through GIA and DCLA laboratory-certified diamonds
  • Award-finalist status recognises our excellence in jewellery craftsmanship
Associations and certifications
  • GIA
  • DCLA
What people say
Stunning custom designs Exceptional customer service Perfect engagement rings Expert diamond advice Beautiful heirloom restoration
Services
Engagement Rings
Custom-designed engagement rings featuring certified diamonds in various settings including solitaire, halo, and vintage-inspired designs. Our expert consultation process ensures perfect alignment with client preferences and budget. Each piece combines traditional craftsmanship with modern design techniques for enduring quality.
Wedding Bands
Handcrafted wedding bands in contemporary and classic styles using premium metals. We offer both ready-made collections and fully custom designs tailored to individual tastes. Our bands complement engagement rings while maintaining distinct elegance for lifelong wear.
Custom Design
Personalised jewellery creation from concept to completion. Clients collaborate directly with our master jeweller to develop unique pieces reflecting personal stories and style preferences. The process includes design sketches, material selection, and prototype reviews for perfect realisation.
Diamond Selection
Expert guidance in choosing certified diamonds using 4Cs analysis. Clients learn to identify quality characteristics through loupe examination of cut, colour, clarity, and carat weight. We source directly from trusted suppliers to ensure optimal value and authenticity.
Heirloom Restoration
Revitalisation of inherited jewellery through careful restoration or complete redesign. Our specialists preserve sentimental value while updating designs for modern wearability. This service includes structural repairs, stone re-setting, and contemporary styling options.
People
Mark Nathan
Master Jeweller
Second-generation jeweller with 25+ years experience in diamond setting and custom design. Inherited craft from father's Hatton Garden legacy while establishing Sydney's premier bespoke jewellery service. Specialises in translating client visions into enduring wearable art.
Questions
How do I book a custom jewellery consultation?
Contact us via phone or email to schedule your complimentary appointment at our Castlereagh Street showroom, available Monday-Friday 9am-6pm.
What diamond certification standards do you use?
All diamonds carry dual certification from GIA and DCLA laboratories, ensuring verifiable quality and authenticity for every stone.
Can you redesign existing jewellery pieces?
Yes, we specialise in transforming heirlooms into modern wearable art while preserving sentimental value through careful remodelling.
What payment options are available?
We accept major credit cards, bank transfers, and interest-free payment plans for qualified purchases over $1,000.
Do you offer international shipping?
Yes, we provide secure worldwide shipping with full insurance for all finished pieces and selected online purchases.
What warranty applies to your jewellery?
We offer a 12-month warranty covering manufacturing defects, with optional extended care plans available for ongoing maintenance.
Reviews (5)
Jordan Sexty
Nov 28, 2021 Report
Mark is professional, prompt and delivers with remarkable precision at every step of the process whether designing a new piece or simply bringing an existing one back to life. A wealth of expertise is on offer whilst not directing you in your decision which means the inevitably great result is still your own.
Cannot recommend highly enough.
Stephanie Low
Nov 22, 2021 Report
Positive:Professionalism,Quality
My partner went through Mark to get my engagement ring made and I was beyond impressed! Far beyond my expectations in not only the quality but also the professionalism and expertise. When it comes to jewellery, I could not recommend anyone else more highly.
Agt
Nov 16, 2021 Report
Every Jeweller I walked into, I felt that they were trying to gouge me! I was lucky to finally meet Mark, he talked numbers that were sensible and that could be validated, he promised and delivered a beautiful engagement ring. I will never use anyone else for my partners Jewellery going forward. Strongly recommend that you meet Mark before making any decisions. My Partner and I are both delighted with the end product and the service we received.
Kimberly Macatangay
Oct 27, 2021 Report
Positive:Professionalism,Quality,Responsiveness,Value
Mark did our engagement ring and wedding bands! He did a very exquisite job with our stone. He listened to all our request and was able to make it work, given a short period of time. The quality and details were made possible. Thank you Mark this is trully a gem of a lifetime.
Anthony Karn
Sep 22, 2021 Report
Mark, thank you very much for such an amazing ring! From the first time meeting Mark, right to the final moment of picking up the engagement ring, Mark has been amazing! Mark's work is completely transparent, he is patient and really treated me like family which made me a lot more comfortable placing my trust in him and investing in his workmanship and product.
Cannot recommend Mark enough!
Looking forward to using Mark for our wedding rings :)