Business Details
50+ Years
experience
Exquisite Diamonds & Custom Jewelry in Sydney
BRILLIANT DIAMOND has been a trusted name in the jewellery industry since 1968, offering unparalleled craftsmanship and expertise in diamonds, custom jewellery, and timepiece services. Founded in Gothenburg, Sweden, by Arto Agopyan, a master goldsmith trained in Istanbul, the business relocated to Australia in 1968 and now operates from Sydneys historic Dymocks Building. Our team includes Masis Agopyan, Australias youngest gemologist and diamond technologist, alongside a TAFE-qualified watchmaker, ensuring every service meets rigorous standards. We specialise in diamond supply, bespoke jewellery design, remodelling heirlooms, and precise valuations, with affiliations to the Gemmological Association of Australia and the National Council of Jewellery Valuers.Our commitment to quality is reflected in our use of authentic gemstones, transparent pricing, and a legacy of creating timeless pieces that celebrate individuality. With decades of combined experience, we blend traditional techniques with modern innovation to deliver exceptional value and service. Our expertise extends to repairing and servicing watches and clocks, preserving the functionality of cherished timepieces. We prioritise client satisfaction through personalised consultations, ensuring every creation aligns with the clients vision. Our accolades, including Masis Agopyans multiple qualifications, underscore our authority in the industry. Trust BRILLIANT DIAMOND to transform your jewellery dreams into enduring masterpieces.
Services
Diamond Supply & Sales
Custom Made Jewellery
Jewellery Remodelling
Jewellery & Watch Valuations
Watch Repair & Servicing
Details
- Year established: 1968
Highlights and features
- Family-owned since 1968 with generational expertise in jewellery and diamonds.
- Skilled artisans create bespoke designs tailored to individual preferences.
- Expert valuations by Australias youngest gemologist and diamond technologist.
- On-site TAFE-qualified watchmaker for precision repair and servicing.
- Affiliated with leading industry bodies ensuring quality and professionalism.
Associations and certifications
- Gemmological Association of Australia (GAA)
- National Council of Jewellery Valuers (NCJV)
Services
Diamond Supply & Sales
We source and supply premium diamonds globally, offering diverse options for all jewellery needs. Our diamonds are guaranteed authentic, ensuring exceptional value. Clients benefit from expert guidance to select stones that meet their specific preferences and budget.
Custom Made Jewellery
Transform your vision into a unique masterpiece with our custom jewellery service. Skilled designers collaborate with clients to create one-of-a-kind pieces, blending artistic creativity with technical precision. Each creation reflects individuality and is crafted to the highest standards of quality.
Jewellery Remodelling
Revitalise cherished jewellery with our remodelling service, preserving sentimental value while modernising designs. Our artisans expertly repurpose existing pieces, ensuring they remain relevant and wearable for future generations, combining tradition with contemporary aesthetics.
Jewellery & Watch Valuations
Our accredited valuers provide accurate, detailed appraisals for insurance, estate planning, or personal knowledge. Utilising industry expertise, we assess jewellery and watches, ensuring clients understand the true value of their assets with transparent, reliable reports.
Watch Repair & Servicing
Maintain the precision and longevity of your watches with our expert repair and servicing. A TAFE-qualified watchmaker handles all brands, from routine maintenance to complex restorations, ensuring each timepiece functions flawlessly and retains its aesthetic appeal.
People
Arto Agopyan
Founder
Arto Agopyan, a master goldsmith trained in Istanbul, founded BRILLIANT DIAMOND in 1968. His traditional craftsmanship and entrepreneurial spirit established the businesss legacy of quality and innovation in jewellery.
Masis Agopyan
Director & Gemologist
Masis Agopyan, Australias youngest gemologist and diamond technologist, leads BRILLIANT DIAMONDs operations. His expertise spans jewellery design, valuation, and watchmaking, ensuring the business maintains its reputation for excellence and technical proficiency.
Questions
What services does BRILLIANT DIAMOND offer?
We provide diamond supply, custom jewellery design, remodelling, valuations, and watch and clock repair services, all tailored to client needs.
Is BRILLIANT DIAMOND affiliated with industry bodies?
Yes, we are affiliated with the Gemmological Association of Australia and the National Council of Jewellery Valuers, ensuring professional standards.
Can I get custom-designed jewellery?
Yes, our bespoke service creates unique pieces based on your preferences, with expert guidance throughout the design process.
Do you repair watches and clocks?
Yes, our TAFE-qualified watchmaker offers repair and servicing for all types of watches and clocks, preserving their functionality.
How are valuations conducted?
Accredited valuers assess jewellery and watches using industry standards, providing detailed reports for insurance or estate purposes.
