Crafting Your Story

At MARLII LAB, we specialise in crafting bespoke fine jewellery and engagement rings that seamlessly blend advanced gemmology with the ethical elegance of lab-grown diamonds and coloured gems. Our commitment to green craftsmanship ensures each stone is created with minimal environmental impact, setting us apart from traditional diamond mining practices.

We offer a personalised journey where each piece is custom-designed to highlight the unique brilliance of our lab-grown diamonds and coloured gems. Our collections feature timeless designs and contemporary styles, all crafted using responsibly sourced metals and precision settings that enhance the natural beauty of the stones.

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Our bespoke process is very personal and collaborative. From your initial consultation to the final creation, a dedicated Gem Specialist and our in-house designer will guide you through every step. Our designer will artistically draw your piece from start to finish, and you will receive this unique artwork alongside your finished jewellery, making it a cherished keepsake.

Choose MARLII LAB for a bespoke experience that combines ethical practices with unparalleled craftsmanship, resulting in jewellery that is as beautiful as it is responsible.


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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.