Fine Diamonds.
Done differently.

CALI Diamond Atelier is a private diamond sourcing and bespoke Fine Jewellery studio. We specialise in sourcing exceptional natural, lab-grown and rare coloured diamonds, creating timeless pieces through a highly personal and transparent experience.

Diamond Specialists

Why diamonds? As the hardest natural material on Earth, ranking 10 on the Mohs Hardness Scale, diamonds are exceptionally resistant to scratching and beautifully suited to jewellery designed for everyday wear. We believe fine jewellery should last for generations, which is why we choose diamonds for their beauty, brilliance and durability. We work with natural, lab-grown and rare coloured diamonds, sourced responsibly through trusted suppliers. Our diamonds are conflict-free and accompanied by independent grading reports where applicable, giving you confidence in their quality and authenticity.

OFFERINGS

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Bespoke Custom Design & Manufacturing

For those who desire something truly one-of-a-kind, our bespoke jewellery service brings your vision to life. From sourcing the perfect diamond through to concept development, CAD design and final manufacturing, we guide you through every step of the process. Working closely with you, we create a beautifully crafted piece that reflects your individual style, story and vision.

A brown jewelry display box with several diamond and gemstone rings and earrings inside, with jewelry tweezers nearby, on a beige background.

Diamond Sourcing

We source natural, lab-grown and rare coloured diamonds tailored to your budget, preferences and design. By sourcing from current market availability, we provide transparent pricing and a carefully curated selection of diamonds to choose from.

Stacked rings with large diamonds and baguette-cut diamonds.

Ready-to-wear Jewellery

Explore our curated selection of ready-to-wear fine jewellery, chosen to showcase the quality, craftsmanship and timeless style behind every CALI piece. Our collection offers inspiration for your own bespoke design, with select pieces also available to purchase for those seeking something beautiful without the custom-design process.

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Founder

Founded by GIA-trained diamond specialist Rhianna Dadson, CALI Diamond Atelier was created to offer a more personal and transparent approach to buying fine jewellery. With over 12 years of experience in the diamond industry, Rhianna specialises in sourcing natural, lab-grown and rare coloured diamonds guiding clients through every step with honesty, expertise and meticulous attention to detail. With extensive experience in CAD jewellery design and discerning eye for exceptional craftsmanship, Rhianna works closely with trusted jewellers to create beautifully considered pieces. Every design is thoughtfully refined with a focus on quality, proportion and the finest finishing details.