EUR 640
OCTAVE works the way the deco ateliers worked: one bench, one goldsmith, and a drawing before anything is cut. Each piece is begun for one person and finished by hand in the workshop behind the shop, so the yearly count is small and every commission is talked through face to face. What leaves the bench is hallmarked, boxed and meant to outlast its decade.
The bench takes six commissions a season. Drawings are kept, stones are recycled where we can, and nothing is cast until the wax is signed.
EUR 1,850
ZIGGURAT
Black onyx, platinum
EUR 1,240
FAN
Onyx, diamond
EUR 980
CHEVRON
18k gold, hand-engraved
EUR 2,900
FOUNTAIN
Platinum, diamondThe commission
The conversation
You bring the idea, an heirloom stone or a date. We talk stones, sizes and budget.
Sketches and a quote
Pencil drawings and a fixed quote within two weeks. Nothing is owed until you say yes.
The making
Wax, cast, set. Four to six weeks at the bench, with photographs as it goes.
Hallmark and handover
Hallmarked at the assay office, collected in the workshop or delivered insured.
Margaux Verhoeven learned chasing and stone setting at the academy in Antwerp and spent nine years at a bench in the diamond quarter before opening her own workshop in 2021. She works alone, in recycled 18k gold and platinum 950, and takes only the twelve commissions the bench can honestly finish each year.
She collects period brooches, teaches one evening class a week, and answers every enquiry herself, usually within two days.
Common questions
Antwerp, the diamond quarter
Workshop visits by appointment
How long does a commission take?
Four to six weeks from the approved sketch, longer around the December holidays.
Which metals do you work in?
Recycled 18k gold and platinum 950, refined in Europe.
Natural or lab-grown stones?
Both, on request. Every stone is described and priced in the quote.
What if the ring does not fit?
Sizing is included within one year of collection.
Do you ship?
Insured shipping worldwide, or collection in the workshop.
How do I care for a piece?
A care card comes with every piece. Onyx likes a soft cloth and no perfume.
Bring us the idea.
Commissions open at the start of each season. Write with a stone, a date or a drawing, and the workshop replies within two days.
Write to OCTAVE