MARLII LAB was founded in 2023 by Giacomo, who has a passion for blending elegance with sustainability in fine jewellery. Frustrated by the lack of ethical options in the market, he established MARLII LAB in the heart of Adelaide to offer an alternative that prioritises environmental and social responsibility.

From the outset, Giacomo was dedicated to redefining luxury jewellery. He committed to using only lab-grown diamonds and responsibly sourced gold, ensuring that each piece is crafted with the highest ethical standards. His vision was clear: to create beautiful, meaningful jewellery without compromising on sustainability.

At MARLII LAB, transparency and integrity are at the core of everything we do. Our diamonds and gemstones are cultivated in zero-emission laboratories, significantly reducing our carbon footprint. We work exclusively with suppliers certified by the Responsible Jewellery Council, ensuring that our gold is sourced responsibly and ethically.

We invite you to visit our boutique in Adelaide to experience the MARLII LAB difference. From personalised consultations to bespoke designs, we ensure that each piece of jewellery is a unique reflection of your story. Our artisans expertly blend traditional craftsmanship with modern techniques to create timeless pieces that can be cherished for generations.



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At MARLII LAB, we meticulously select diamonds to match each client's unique needs, guaranteeing the finest stone available at any given moment.

Our diamond specialist, driven by a fervent commitment to ethical sourcing, only chooses IGI certified stones that surpass our rigorous standards in terms of colour, clarity, and cut.

To initiate the process, please complete the form below, specifying your preferred carat size and budget. Our dedicated customer service team will respond to your request within 24 business hours.

Please be aware that, due to their unique nature, we cannot accommodate exchanges or returns for bespoke items.