Australia Wide
Bespoke Jewellery, Australia
If you can describe it, we can make it. De Leoni designs and hand makes custom jewellery for clients across Australia, from engagement rings and tennis necklaces to enamel work and heirloom remodelling.
Custom jewellery made for you, not adapted to you
Most jewellery is designed first and sold second. We work the other way around. Every De Leoni commission begins with a private consultation, by video from wherever you are in Australia or in person with our Sydney based design team, where we talk through the piece, the occasion, how it will be worn and what it needs to last through.
From there our designers produce hand sketches, then CAD, so you can see proportion, profile and stone placement before any metal is cut. Stones are sourced to your brief, natural or lab grown, certified, and chosen in person on your behalf. Master jewellers then cast, file, polish and hand set the piece. Most commissions take four to six weeks, and every finished piece is shipped insured anywhere in Australia.
What we make
There is no standard brief
Engagement & Wedding Rings
Solitaires, three stone, toi et moi and hidden halo settings, cut to your stone and finger profile in 10ct, 14ct or 18ct gold and platinum.
Tennis Necklaces & Bracelets
Graduated or uniform, natural or lab grown, set to the exact carat weight and coverage you want rather than a fixed catalogue spec.
Coloured Stone Pieces
Sapphires, emeralds, rubies, spinels and rare cuts sourced to brief, matched for tone and life rather than paperwork alone.
Enamel & Signet Work
Hand applied enamel, engraving, monograms and crests for pieces meant to be worn every day and handed on.
Heirloom Remodelling
Inherited stones reset into something you will actually wear, with the original character kept intact.
Pendants, Studs & Hoops
Everyday classics built properly: correct backs, correct weight, correct spread for the carat you choose.
The process
Six steps, from first conversation to finished piece
- I
Initial Consultation
We begin one-on-one, by video or in person, discussing your ideas, references and the story the piece needs to carry.
- II
Concept Development
Our designers return with hand sketches and several directions. You give feedback, we refine, until the design is unmistakably yours.
- III
CAD Drawings
The chosen concept is rendered in three dimensions so you can see proportion, profile and stone placement before a gram of metal is cut.
- IV
Stone Selection
We source diamonds and coloured stones to your brief, natural or lab grown, certified, and chosen in person for life and character.
- V
Crafting
Master jewellers cast, file, polish and hand set the piece. This is the slowest part of the process, and deliberately so.
- VI
The Reveal
Your finished piece is delivered insured anywhere in Australia, sized and adjusted, with certification and lifetime care.

Materials
Diamonds, coloured stones and enamel
We work across natural and lab grown diamonds, coloured gemstones, hand applied enamel, and gold from 10ct through to 18ct as well as platinum. If a piece calls for a technique we have not been asked for before, we will find the right hand for it rather than talk you out of the idea.
Explore diamonds and gemstonesA virtual atelier, wherever you are
De Leoni operates as a virtual storefront, so there is no showroom markup and no need to live near one. Clients commission pieces with us from Sydney, Melbourne, Brisbane, Perth, Adelaide, Canberra, Gold Coast and Hobart, as well as regional towns across every state and territory. Consultations run by video, sketches and CAD renders arrive by email, and finished pieces are delivered insured and signature required.

Start your piece
Tell us what you have in mind
Send a description, a reference image, a budget range, or nothing more than a feeling. We will come back to you within one business day with next steps and an honest indication of cost and timing.
All pieces are made to order and take approximately four to six weeks. Prices are subject to change with gold and stone markets.
