Every piece is made to order, what does that mean?

Every piece in the collection is made specifically for you when you order. Please allow 6 to 8 weeks before it reaches you. If you need a piece by a specific date, get in touch at s@stephanievanzwam.com.

Can I customise an existing design?

Most pieces in the collection can be personalised — gold colour, diamond size, stone shape, the details that matter to you. Get in touch and Stephanie will let you know what's possible for the piece you have in mind.

Can I have something engraved?

Engraving is available on select pieces — a name, a date, or a message known only to the person who wears it. Get in touch to discuss what is possible for your piece.

How long does a bespoke commission take?

The design phase moves at your pace, refined until it feels entirely right. Once you are happy with the design, production takes six to eight weeks depending on the complexity of the piece.

Can I bring my own stone?

Yes. Working with a stone that already belongs to you, whether inherited or simply loved, is something Stephanie approaches with great care. The history it carries becomes part of the design. Bring it to the consultation and she will advise on the best way to work with it.

Where do I begin with a bespoke commission?

With a conversation. The consultation is complimentary and without obligation — in person, or by Zoom, phone, or email. You can book directly on the Bespoke page at stephanievanzwam.com.

Are your diamonds certified?

Every diamond comes with its own independent certificate from the GIA or IGI, confirming exactly what the stone is. Small accent stones are not individually certified.

Are lab-grown diamonds real diamonds?

Yes. Lab-grown diamonds are physically, chemically and optically identical to mined stones. The difference is origin. They are grown from a diamond seed under precisely recreated conditions rather than formed in the earth over millions of years.

How do I find my ring size?

A complimentary ring sizer is available on request. Rings are available in EU, UK and US sizes, including half sizes. If you are between sizes, Stephanie will advise on the best fit for the style you have chosen. One complimentary resize is included with every ring, one size up or down.

Is resizing available?

Resizing is available for all Stephanie Van Zwam pieces and takes approximately two weeks. The cost varies depending on the complexity of the ring. Get in touch to discuss.

What payment methods do you accept?

Payment is accepted by credit and debit card, PayPal, and bank transfer. All transactions are processed securely through Shopify Payments.

Do you work with international clients?

Yes. Stephanie works with clients across Switzerland and internationally. Consultations are available by Zoom, phone, or email, and the full process can be completed from anywhere. All pieces ship worldwide.

How will my piece arrive?

Engagement rings arrive in a lacquered wooden box. All other pieces come in a branded card box. Every order is packaged with care.

Can I return my piece?

As every piece is made to order, collection purchases and customised pieces cannot be returned or exchanged. For bespoke commissions, a deposit is required to begin. This covers materials sourced specifically for your piece and cannot be refunded once the commission is underway. Everything is discussed openly before any commitment is made.

What if my piece arrives with a fault?

If a piece arrives with a fault, please get in touch at s@stephanievanzwam.com within two years of receiving it. Faulty pieces will be repaired, exchanged, or refunded. Each situation is assessed individually and handled with care.

Terms of service

Last updated: 12 November 2026

These terms set out how we work together, from your first enquiry to the day your piece arrives. They apply to every purchase on stephanievanzwam.com and to every bespoke commission; by placing an order, you accept them.

Who we are

Stéphanie Van Zwam, trading as STEPHANIE VAN ZWAM (UID CHE-430.482.479), based in Nyon, Switzerland (full postal address in our Legal notice). Email: s@stephanievanzwam.com. Phone: +41 79 173 32 81.

Our pieces

Every piece is made by hand, to order, by specialist ateliers in Switzerland and Europe chosen by Stéphanie. We describe and photograph our pieces as accurately as we can, but photos are indicative: natural stones and handcrafted metal vary slightly from piece to piece. Each centre diamond comes with an independent GIA or IGI certificate; small accent stones are not individually certified.

You must be 18 or older to order. Our pieces are sold for personal use, not for resale.

Ordering

Your order is an offer to buy. The contract is formed when we confirm your order by email. We may decline an order, for example if a stone or material is no longer available; if you have already paid, we refund you in full.

Please allow 6 to 8 weeks between your order and dispatch. We tell you the estimated delivery date when we confirm your order, and contact you if it changes. If you need a piece by a specific date, write to us before ordering.

Prices and payment

Prices are final prices in Swiss francs (CHF), or in euros where shown. Shipping costs are shown at checkout and in our Shipping policy. For deliveries outside Switzerland, import VAT and customs duties may be charged on delivery and are paid by the recipient.

We accept cards and PayPal through Shopify Payments, and bank transfer on request. We may change prices at any time; the price confirmed in your order is the one you pay.

Bespoke commissions

A commission starts with a free, no-obligation consultation. We then prepare design proposals and refine them with you. Your commission is confirmed when you approve the final design and pay the deposit. From that moment the deposit is non-refundable, because we buy stones and materials specifically for your piece. The balance is due before dispatch, as set out in your proposal. Bespoke pieces cannot be returned.

Cancellations and returns

Every piece is made to order, so we do not accept returns if you change your mind. Cancellations, faults and resizing are explained in our Returns policy.

Faults and legal guarantee

If your piece has a fault, you are covered by a 2-year legal guarantee from delivery. How to report a fault is explained in our Returns policy.

Your account

You can sign in to your account with a one-time code sent to your email address. Please keep access to your email secure and tell us if you notice any misuse.

Intellectual property

All designs, photos, texts and other content on this website, and every bespoke design, belong to Stephanie Van Zwam. You may not copy or use them without our written permission. For image requests, write to s@stephanievanzwam.com.

Personal data

How we handle your personal data is explained in our Privacy policy.

Governing law

These terms are governed by Swiss law. The courts of the Canton of Vaud have jurisdiction. If you are a consumer living outside Switzerland, you keep the protection of the mandatory consumer laws of your country of residence, and you may also bring a claim before its courts.

Changes

We may update these terms. The version in force when you place your order applies to that order.

Questions? Write to Stéphanie at s@stephanievanzwam.com; she reads every message personally.