
We make bespoke fine jewellery personal and accessible without compromising on quality.
It didn’t start with diamonds. It started with a feeling. A rebellion against the impersonal.
A need for meaning, for beauty that speaks, for something made just for you, not pulled from a shelf but crafted from connection, a bespoke experience.
We’re not about mass production or fleeting trends. We’re in the quiet, golden space where love lives. We design intentionally. Thoughtfully. With old-world elegance and a modern edge. Refined, but never rigid.
We know that the most beautiful things are often the most personal. Every piece we make begins with a story. Yours.
Founded by Sadé Dubois, whose background spans the shaping of iconic luxury houses and a deep understanding of human connection, "I’ve learnt what truly makes beauty resonate, and I bring that understanding into every detail we design."

Authenticity
From the originality of our creations to the certified high-quality diamonds and gems we offer, each diamond is as unique as the piece we create around it, embodying the originality and creativity we value deeply. Our distinct approach to luxury remains unparalleled.

Connection
Connection is the cornerstone of our brand's philosophy. Creating pieces that enhance connection and personal empowerment. Beyond the jewellery, we treasure the connections and relationships we build with our clients, designers and our brand partners, as we strive to use our jewellery as a force for good.

Expertise
Our team's expertise is unrivaled, with a refined eye for luxury, supported by the skill and precision of our gemologists, artisans, and trusted trade partners. We deliver on our promise of exceptional jewellery that meets the highest standards of excellence.
CLIENT REVIEWS
"Exceptional Craftsmanship & Service!
The One Diamond Atelier exceeded all expectations! Their attention to detail, passion, and professionalism made the entire experience seamless. They truly took the time to bring my vision to life, and the final piece is absolutely stunning. Highly recommend to anyone looking for bespoke, meaningful jewellery!"
Gerdus Crous
"I highly recommend The One Diamond Atelier to anyone looking for a truly special piece of jewelry. I am absolutely obsessed with my custom-designed engagement ring and still completely in love with it, even after two months!
The service has been outstanding, and the team, a group of skilled and welcoming women, goes above and beyond to ensure every detail is perfect. If you're looking for expert craftsmanship and a personal touch, The One Diamond Atelier is the place to go!
With them you're not just a number."
"I had an engagement ring made by The One Diamond Atelier. The service that I received from them was excellent and very friendly. They also guided me extensively in terms of the options, while I was able to give them my view on what I was looking for. One Diamond did deliver on what I wanted. THANK You again. My ring is perfect for my perfect Girl." 💍
"The One Diamond Atelier created my perfect bespoke engagement ring! I absolutely love it and have been staring at it ever since I received it!! They guided my fiancé to make the most beautiful ring I have ever seen, and I am still speechless. They managed to create a very intricate design while using only the best quality materials. It is better than what I ever could have imagined or dreamed of. It is such a beautiful promise that highlights our new life together. Thank you for this amazing journey, The One! I would definitely recommend them to everyone looking for their perfect ring or bespoke piece of jewellery."
"I had such a great experience working with the one!
It is really cool being able to bring the idea of a ring that have in your head to life.
The team at the One was very friendly and taught us all we needed to know to undergo the process of making the ring. If we had any questions or concerns, they helped or answered us quickly, resolving any issues or misconceptions.
They shared progress updates with regards to the diamond, design and making if the ring. This resulted in a process that I truly felt part of.
Great people and a great service!"
Stories, Inspiration & Expert Advice
Our Atelier Journal
Explore our world of inspiration, exquisite design, and the love we infuse into every piece we create. Discover the stories of connection, the details of our creations, and moments behind the scenes.

Flexible Payment Options Now Available with Float
We’re excited to announce a new way to shop at The One Diamond Atelier! With Float, you can now enjoy flexible, interest-free payment plans of up to 24 months, making it easier than ever to own the...
Read more
Beyond the Ring: The Art of Bridal Jewellery
The Bespoke Bridal Jewellery Experience: Completing Your Dream Wedding Look. Your wedding day is a masterpiece—every detail thoughtfully chosen to reflect your love story, style, and vision. At T...
Read more
Gerdus & Cecile’s Bespoke Engagement Ring Experience
When our client Gerdus set out to create the perfect engagement ring for Cecile, he envisioned something truly special, an elegant, timeless piece that reflected their love story. From hand-selecti...
Read more