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.

Privacy policy

Last updated: 12 November 2026

Your privacy matters to us as much as the pieces we make. This policy explains what personal data Stephanie Van Zwam collects, why, who we share it with, and the choices you have.

Who we are

Stéphanie Van Zwam, trading as STEPHANIE VAN ZWAM (UID CHE-430.482.479), based in Nyon, Switzerland, is responsible for your data. Our full postal address is in our Legal notice. For any privacy question, write to s@stephanievanzwam.com.

What we collect and why

When you send a bespoke enquiry: your name, email address and what you tell us about your project. We use it to reply, prepare proposals and, if you go ahead, make your piece.
When you message us on Instagram or Facebook: your profile name and what you write, to answer you and guide your project. These messages are also processed by Meta under its own privacy policy.
When you order: your name, contact details, delivery and billing address, and order details. We use them to process payment, deliver your order and meet our accounting obligations. We never see or store your full card number.
When you sign in to your account: your email address, to show your orders. You sign in with a one-time code sent by email, and you can ask us to delete your account at any time.
When you subscribe to our emails: your email address, to send you news about new pieces, through Shopify Email. You confirm your subscription by email, and we record when you subscribed. You can unsubscribe at any time with the link in each email.
When you browse our site: technical data such as pages viewed, device, browser, approximate location and how you arrived (for example from an ad). Each visit also creates basic technical logs, such as your IP address and the time of your visit, which we use to keep the site secure. All connections to our site are encrypted (HTTPS). See Cookies below.

Cookies and similar technologies

We use cookies in four groups:

Required: needed for the site to work, such as your cart and security. Always on.
Personalisation: remember your choices for your next visit.
Analytics: help us understand how visitors use the site, through Shopify and Google Analytics, so we can improve it.
Marketing: let us measure our ads and show you relevant ads on other sites, through the Meta pixel (Facebook and Instagram), the Pinterest tag and Shopify.

If you visit from the European Union, the UK or Monaco, we only use personalisation, analytics and marketing cookies if you accept them in our cookie banner. From other countries, including Switzerland, these cookies are active by default and you can refuse them at any time: through "Manage preferences" in the cookie banner where it appears, by blocking or deleting cookies in your browser settings, or through Google's opt-out tool for Analytics. Refusing cookies does not stop you using the site.

Who we share your data with

We only share what each partner needs to do its job:

Partner	What for
Shopify	Hosting our website, orders, payments and site analytics
Google (Google Analytics)	Measuring how the site is used
Meta (Facebook, Instagram) and Pinterest	Measuring our ads and showing relevant ads
hCaptcha	Protecting our enquiry form from spam
PayPal and card networks	Processing payments
DHL Express	Delivering your order
Google (Gmail)	Receiving and answering your messages
The ateliers who make your piece	Only the details needed to make it, never your contact details unless needed for delivery

We do not sell your personal data.

Ad audiences: we may ask Meta and Pinterest to show our ads to people who visited our site or engaged with our posts, or to people with similar interests. They do this using our website cookies. You can opt out through the cookie banner, your browser, or the ad settings of your Meta and Pinterest accounts.

Shop app reminders: if you use Shopify's Shop app, Shopify may send you reminders based on your activity on our site, for example about a piece you viewed or left in your cart. This is handled under Shop's own privacy policy, and you can turn these reminders off in the Shop app.

Visitors from the United States: if you live in a US state with its own privacy law, you can opt out of the sharing of your data for advertising on our privacy choices page, linked at the bottom of our site.

Data sent abroad

Some partners, including Shopify, Google, Meta and Pinterest, process data outside Switzerland and the EU, notably in the United States and Canada. Where these countries do not offer the same level of protection, transfers rely on recognised safeguards, such as the Swiss–US and EU–US Data Privacy Frameworks or standard contractual clauses.

How long we keep your data

Orders and invoices: 10 years, as Swiss accounting law requires.
Enquiries that do not lead to a commission: 2 years after our last exchange.
Email subscriptions: until you unsubscribe.
Cookies: from the end of your visit up to 2 years, depending on the cookie.

Your rights

You can ask us at any time to see the data we hold about you, correct it, delete it, or receive a copy. You can also object to our use of your data, or withdraw your consent, without affecting what was done before. Write to s@stephanievanzwam.com; we reply within 30 days.

If you are not satisfied, you can complain to the Swiss Federal Data Protection and Information Commissioner (FDPIC), or to the data protection authority of your country, such as the CNIL in France.

Our legal basis (for visitors from the EU)

We use your data to perform a contract with you (orders and commissions), with your consent (cookies and emails), to meet legal obligations (accounting), or for our legitimate interest in running and protecting our business (security, answering enquiries).

Security

We protect your data with appropriate technical and organisational measures, and our partners are bound to do the same.

Children

Our site and services are not intended for anyone under 18, and we do not knowingly collect their data.

Changes to this policy

We may update this policy. The date at the top shows the latest version.