Celinni

Celinni is a French diamantaire house, founded in 1967, whose Zurich outpost is a private showroom at Dufourstrasse 49, 8008 Zürich, in the Kreis 8 district a short walk from the lake. There is no shop window and no walk-in counter. The address on the site only becomes useful once you have a booked appointment, and Celinni is upfront that the showroom is open Tuesday to Saturday, 9:00am to 7:00pm, by appointment only. That is the standard model for a diamantaire, a dealer whose core business is loose, certified stones rather than a boutique of finished pieces, and it keeps overhead down in a way that shows up in the prices compared with a maison flagship a few tram stops away on Bahnhofstrasse.

For an English-speaking newcomer to Zurich, the most useful thing to know before you get in touch is how contact actually works here. There is no booking calendar on the page; you get connected to a named advisor instead. In Zurich that is Selma Laraqui, and the site lists her direct WhatsApp number, 076 626 78 88, alongside her email, selma@celinni.com, rather than a general reception line. Celinni's own Instagram account for this location, @celinni_zurich, repeats the same number and asks people to send a direct message to book, adding that the same advisor also covers clients in Zug and Lucerne, useful to know if you have landed in one of the lower-tax cantons around Zurich rather than the city itself. The site does not offer a plain phone-call booking path: the channel it promotes is WhatsApp or Instagram DM, so an expat used to booking a jeweller by phone or web form should expect the first contact to happen inside a messaging app. We read the destination through its English page, and cross-checked the German version of the same store listing: both repeat the identical Dufourstrasse address and contact details, so the English content is not a thin afterthought copy of a German original.

Once you have a slot, the visit itself is built around the stone rather than a browse through a case of finished rings. A diamond expert walks you through certified stones (GIA, IGI or HRD paperwork, the three labs most dealers in this category rely on) and can model a custom design in 3D before anything gets made. Loose diamonds and coloured gemstones (Celinni names sapphires, rubies, emeralds and spinels among what it sources) sit alongside finished engagement rings and wedding bands. If you commission a piece rather than buy off the shelf, it is crafted at Celinni's workshop in Paris and either handed to you at the Zurich showroom or shipped to your address, in Switzerland or abroad. What the page does not publish is a turnaround time: there is no stated number of weeks from a first consultation to a finished ring, so treat lead time as a question to raise at the appointment rather than an assumption to walk in with.

What stands out for a newcomer

Price transparency is the one place Celinni gives you more than most dealers this size. Its FAQ states that a Zurich engagement ring starts at approximately CHF 1,000, and is explicit that carat weight, colour, clarity and cut move the price up from there. That is a floor, not a quote, and it is unusual to see any starting figure published at all in this category, which lets you self-select before you book rather than after a consultation you didn't need. Past the sale, Celinni advertises a lifetime warranty on its jewelry, complimentary maintenance, resizing and re-engraving every 18 months, and up to 10 free valuations per appointment if you already own a piece and want to know what it is worth (a written appraisal for insurance or inheritance purposes costs extra and needs a separate request). For someone who expects to be in Switzerland for only a few years, the resizing-and-maintenance offer matters more than any one-off discount: it is the difference between a ring you keep wearing through a change of climate and diet and one you quietly stop wearing because it no longer fits.

Shipping, returns and the parts the site stays quiet on

Celinni also runs an online catalogue, live since 2008, where it lists more than 100,000 certified diamonds you can configure from anywhere with the same guidance the site says you would get in the showroom. Orders placed that way come with free tracked and insured delivery and a 30-day satisfied-or-refunded window, according to the site's own guarantee badges. What is missing from the page is any detail on Swiss import duty or a VAT refund process, whether you are shipping a piece abroad or receiving one from the Paris workshop while resident in Switzerland. There is a link promising to explain how a tax rebate works, but it does not spell out the mechanics on the page we read, so that is a question for your advisor rather than an assumption to make. The site is similarly quiet on whether a Zurich purchase ships duty-paid or duty-unpaid. Ask before you commit if you plan to leave the country with the piece, or send one on to someone who has.

How it's organised, and how it compares

Celinni is not a single Zurich boutique; it runs the same appointment-only format as a small Swiss network. The identical setup exists in Lausanne, at Avenue de la Harpe 29, and in Geneva, at Quai du Général-Guisan 34 inside the Hôtel Métropole, each with its own named advisor and WhatsApp line. The wider group also lists entities in Belgium, Morocco and Dubai alongside Switzerland and the French parent house. Set against a Bahnhofstrasse maison, that is a different trade entirely: you are not paying for a shopfront or a heritage display case, you are paying a smaller network for direct access to stones and a named person who answers a WhatsApp message. Celinni's own FAQ also leans on "six generations of diamond expertise" as a heritage claim, sitting alongside the 1967 founding date for the house itself. Both come from the same page, but only the 1967 date is stated as a fact about Celinni specifically rather than about the diamond trade in general, so read the generational line as the brand's own shorthand rather than a corporate history you could check in a register. On Trustpilot, the wider Celinni brand, not the Zurich address specifically, shows over 1,258 reviews at a four-star rating; the review page itself returned an access error when we tried to open it directly, so that figure comes from a search result snippet rather than the page.

Who it suits

This suits a buyer who wants to compare certified stones side by side with someone who will talk through carat, cut, colour and clarity in plain terms, and who is comfortable building that relationship over a messaging app rather than a shop counter. It suits less well someone who wants to walk in on a whim, or who needs firm shipping and duty terms in writing before committing to anything. Ask for those in your first message. The website will not answer them for you.

The verdict

For an expat comfortable booking by WhatsApp or Instagram DM, Celinni's Zurich operation gives you a named advisor, a published price floor that is rare in this category, and aftercare, the lifetime warranty, the resizing every 18 months, that outlasts most postings abroad. The one thing worth sorting out yourself before you commit: ask about customs, VAT and an exact lead time, because none of the three is spelled out on the site.