GS Diamonds
40
Years' Experience
30k+
Bespoke Designs
100k+
Happy Australians
1800+
Excellent reviews
40 Years’ Expertise
Trusted since 1986
Proudly Australian
Family Jeweller
Custom Design
Create a piece that feels uniquely yours
Expert Guidance
In-store, online & phone support 8AM-11PM
30-Day Money-Back Guarantee
Buy with confidence
Free Shipping
Australia-wide on all orders
Certified Diamonds
Carefully sourced & independently graded
The GS Diamonds story began in the late 1980s inside a humble backyard garage in Earlwood. Driven by intuition and a newly discovered passion, our founder, Tony Tsiamis, cultivated his craft alongside his mother, who brought in our very first clients (while dodging the family’s notoriously protective pet rooster!). In the early '90s, Tony was joined by his wife, Julia, and together they worked around the clock. Their relentless dedication was rewarded with a life-changing triumph in 1994: winning the prestigious Argyle Jewellery Design Award for their innovative umbrella earrings. This milestone gave them the confidence to step out of the garage and open their very first retail boutique in Bexley.
The GS Diamonds story began in the late 1980s inside a humble backyard garage in Earlwood. Driven by...
With a rapidly growing reputation for design excellence, the business expanded into Sydney’s iconic...
As the global jewellery market began to rapidly shift online, our insight and vision aligned with th...
Today, GS Diamonds stands proudly as one of Australia’s most successful jewellery businesses, but ou...
Our Commitment
to You
A dedicated workshop, where master jewellers bring forty years of award-winning design heritage to life.
Our exacting quality control team reviews every diamond, setting, and finished piece to ensure it meets our uncompromising benchmarks for perfection. From the first design sketch to the final quality inspection, every stage is approached with precision and care.
A premium selection of ethically sourced, GIA and IGI certified loose diamonds chosen for their exceptional quality, sourced directly from international manufacturers, eliminating unnecessary markups
For over 40 years, we've had the privilege of celebrating life's most meaningful moments. As we look ahead, our commitment to exceptional craftsmanship, genuine relationships, and timeless jewellery remains stronger than ever. Thank you for being part of our journey.
A dedicated workshop, where master jewellers bring forty years of award-winning design heritage to life.
Our exacting quality control team reviews every diamond, setting, and finished piece to ensure it meets our uncompromising benchmarks for perfection. From the first design sketch to the final quality inspection, every stage is approached with precision and care.
A premium selection of ethically sourced, GIA and IGI certified loose diamonds chosen for their exceptional quality, sourced directly from international manufacturers, eliminating unnecessary markups
For over 40 years, we've had the privilege of celebrating life's most meaningful moments. As we look ahead, our commitment to exceptional craftsmanship, genuine relationships, and timeless jewellery remains stronger than ever. Thank you for being part of our journey.
Our team of experts
Behind every GS Diamonds piece is a team of passionate professionals dedicated to exceptional craftsmanship and personalised service. From diamond specialists to master jewellers, we're here to help you celebrate life's most meaningful moments.
Design Experts
Master Jewellers
Diamond Consultants
Jewellery Specialists
Customer Experience Team
Operations Team
Visit our Sydney showroom for personalised guidance and an elevated in-store jewellery experience.
Receive expert advice and personalised support at our Brisbane showroom.
Explore diamonds, ring styles, and custom design options with our Melbourne team in person.
Work with our Perth specialists to explore diamonds and create your perfect ring
Our customers love us
From timeless proposals to treasured anniversaries, our clients share stories that sparkle as brightly as our diamonds.
We combine expert craftsmanship, ethically sourced diamonds, and personalised service to create jewellery that celebrates life's most meaningful moments. Whether you shop online or visit one of our showrooms, our team is dedicated to making your experience exceptional.
Our jewellery is crafted by experienced jewellers using premium materials and meticulous attention to detail. Every piece undergoes thorough quality checks before it reaches our customers.
Yes. Our design experts can help bring your vision to life, whether you're creating a bespoke engagement ring, remodelling an existing piece, or designing something entirely unique.
We source our natural and lab-grown diamonds from trusted suppliers who meet strict ethical and quality standards. Every diamond is carefully selected to ensure exceptional beauty and value.
You're welcome to visit any of our showrooms during the week without an appointment. However, we recommend booking in advance to ensure dedicated time with one of our diamond consultants. Weekend consultations are available by appointment only.
A closer look at our latest designs, behind-the-scenes moments, and the milestones our customers trust us to be part of.
Follow us
