Three Year Warranty

We're passionate about crafting pieces that are of the best quality. 

Every piece of MARLII LAB Jewellery is covered by a three year warranty on receipt of a valid proof of purchase. This warranty applies to all of our products across the range. Within three years, if your jewellery is in need of repair due to manufacturing fault we will provide you with a full repair and servicing at no charge. 

To return your jewellery to us for assessment, please use our online repair portal. This warranty is in addition to other rights you may have in relation to the piece.

After three years (or if no proof of purchase can be provided), we can still help ensure your piece is loved for years to come - we will offer repairs for the lifetime of your piece for a small fee. You can set this up again using our online repair portal and you'll be charged the appropriate fee after the assessment.  

Please note that manufacturing faults do not include damage due to wear and tear, oxidised or fading plating, broken chains, scratched or marked stones, or bending of rings or earrings etc.


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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.