MARLII LAB

Brilliance is a solved problem. Character is not.

London · Australia

We work with diamonds cut by eye, before the industry optimised them.

MARLII LAB

The MARLII Cutaway

So a quiet stone can be seen.

MARLII LAB

On stones

Cut by eye, before the industry optimised them.

The house

One person decides.

Lucinda selects every diamond MARLII LAB sets, in person. What she is looking for is not on the report.

Seen properly

In person, three or four times a year.

London 29 – 30 August 2026
NoMad Hotel, London
Booked out
Doha 11 – 12 September 2026
Rosewood Hotel, Lusail
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Doha 2 – 3 October 2026
Rosewood Hotel, Lusail
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Adelaide 10 – 11 October 2026
EOS Hotel · booking opens 1 September
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Sydney 17 – 18 October 2026
The Langham Hotel, Barangaroo
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Melbourne 24 – 25 October 2026
Crown Towers Hotel · booking opens 1 September
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Virtual Year-round, worldwide
45 minutes · stones and settings shown live on camera
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Made to order

Each engagement and wedding ring is made individually in Australia, not drawn from finished stock.

Stone disclosure

Natural, laboratory-grown, reclaimed or antique — stated for the individual stone, with its documentation.

Independent grading

Supplied where a report exists for the stone. Where one does not, we say so.

Lifetime warranty

On engagement and wedding rings, in addition to your rights under Australian Consumer Law.

Studio notes

Notes from the studio.

New settings, unusual stones, private-viewing dates and the decisions behind the work. Sent occasionally — never a discount code.