Green World Diamonds

Green World Diamonds works from two showrooms in Zurich rather than the one most jewellers manage, and for a lab-grown diamond specialist that is worth noticing before anything else. The business describes itself on its own site as the first dedicated lab-grown diamond jewellery brand in Switzerland, trading since 2020. Company-register data from Moneyhouse independently lists Green World Diamonds AG as founded in 2020 and still active, so the founding date and the fact that it keeps trading both check out against a second source, not just the marketing copy on the homepage.

The founder is Dr. Monika Balbinot, who runs the company as CEO. Her background before jewellery was in private banking, over 20 years as an HNWI adviser on a trading floor according to her own bio on the site, plus a PhD in psychology and a Polished Diamond Grader credential from the International Gemological Institute. That combination, finance plus a formal grading qualification, is an unusual pairing for a Zurich jeweller, and it shows in how the business talks about diamonds: less heritage and craft, more product spec and certificate.

That focus on lab-grown stones is the whole point of the business rather than an add-on line the way it is at some jewellers who stock a handful of lab-grown pieces alongside a mined-diamond core range. Every stone Green World Diamonds sells is grown, not mined, and every piece comes with a certificate from IGI, GIA or GCAL, the same institutes that grade mined stones. The industry's reference point for treating a lab-grown stone as equivalent rather than a substitute is the US Federal Trade Commission's July 2018 revision of its Jewelry Guides, which dropped "natural" from the federal definition of a diamond. The site cites that same 2018 change directly, and it lines up with the FTC's own account of what it did that year.

Two showrooms, appointment only

The two locations sit at opposite ends of central Zurich's geography rather than duplicating each other. Scheitergasse 12 in 8001 Zürich puts the showroom inside the old town, close to Bahnhofstrasse. Zollikerstrasse 203d in 8008 Zürich sits out in Seefeld, closer to the lakeside neighbourhoods where a lot of the city's international residents actually live. Both are appointment only. There is no walk-in counter at either address, and the site's call to action is simply to contact the business by phone or WhatsApp on +41 76 360 88 88, or by email at info@greenworlddiamonds.ch, to arrange a visit. For a newcomer to Zurich choosing between them, that is a genuine practical choice rather than a formality: one location suits you if you work near the station, the other if you live or spend your time along the lake.

The whole site, including the shop pages, the FAQ and the general terms and conditions, is published in English as well as German, with a language switcher on every page. That matters more than it sounds for anyone arranging an appointment in a language they are still learning: you can read the actual sales terms before you show up, not a summary translated after the fact.

Price transparency, with real numbers attached

Every product listing carries a starting price in Swiss francs, inclusive of Swiss VAT at 8.1 percent, so what you see on the page is what you would pay before any customisation. Checking the engagement rings page directly: the 24 solitaire and side-stone rings listed there start from CHF 2'100 and run up to CHF 4'100, depending on setting and stone shape, with several intermediate prices (2'200, 2'300, 2'400, 2'500, 2'600, 2'700, 3'000, 3'200) scattered across the range. On the homepage, an earring pair lists at CHF 1'600 and a necklace at CHF 2'000. None of that is a discount code or a quote-on-request figure. It is the listed price for the piece as shown, VAT included, so a buyer inside Switzerland does not face an import VAT surprise on top of the sticker price the way they can buying from a seller based abroad.

The site's marketing pages make a much bigger claim about savings against mined diamonds, and it is worth being precise about what is actually written rather than picking whichever figure sounds better. One FAQ answer states lab diamonds are "up to 70 percent cheaper than mine diamonds"; the hero banner and a separate FAQ answer about how the diamonds are grown both claim savings "up to 95 percent." Those two figures sit on the same site without reconciliation, so treat both as the seller's own marketing claim about a best case rather than a number that applies to any specific ring, and compare actual listed prices against a mined-diamond retailer yourself if the discount is the deciding factor.

Sourcing and sustainability, as claimed rather than proven

Green World Diamonds makes several ethical and environmental claims on its site: that its gold and platinum are recycled and RJC certified, that its diamonds are conflict-free with no blood-diamond sourcing, that its packaging uses sustainable wood and materials, and that it meets ESG criteria generally. None of these come with a certificate number, a registry link, or third-party verification visible on the pages checked here, so they read as the seller's own description of its supply chain rather than something independently confirmed for this review. That is not unusual for a small retailer at this end of the market, but it is worth asking to see the actual RJC documentation, or a stone's growth-method paperwork, at the appointment if sourcing is the reason you are choosing lab-grown in the first place, rather than taking the website copy as the final word.

What is and is not published for a newcomer

For anyone new to Zurich weighing this business against a mined-diamond jeweller or an online lab-grown seller, some of the practical questions have clear answers on the site and some do not. Served in English: yes, fully, across the shop, the FAQ and the legal terms. Price transparency: yes, with real CHF figures on every listing and VAT already included. Appointment process: you contact the business directly to book; the site does not publish opening hours, appointment length, or how far in advance to book, so ask when you call or message. Lead time for a bespoke commission: not published either. The atelier uses CAD-3D visualisation and keeps its own designers, goldsmiths and stone setters in Switzerland, and every piece is described as made to the exact diamond's dimensions, but no production timeframe in days or weeks appears anywhere in the shop pages or the terms and conditions, so get that in writing before you order if your date is fixed.

Resizing is not named anywhere in the general terms either. What the terms do cover is a defect and warranty process: you are expected to inspect a delivered piece and report any visible defect immediately, and the terms state that approval is deemed given if no complaint reaches customer service within 8 days of delivery. After that, the seller's remedy is repair of the defect or delivery of a defect-free replacement. There is also no separate right of withdrawal, because the terms state plainly that pieces are custom made for the customer. That is standard for bespoke jewellery, but worth knowing going in: you cannot change your mind for a full refund once a commissioned ring is on order.

The one real inconsistency worth flagging: the footer of every page checked carries the line "Worldwide Shipping," but the general terms and conditions state, in the same sentence structure lawyers use when they mean it literally, that delivery will only be made within Switzerland. For a buyer physically in Zurich this is close to academic, since you would arrange collection or in-country delivery either way. But if you are the kind of expat who might move on again in a year or two and wants a business that will still ship a repair or a resized piece to you afterwards, that published clause says it will not, whatever the footer implies. Ask directly rather than assuming either line is the live policy.

How it compares and who it suits

Against the more established mined-diamond houses in the city, Green World Diamonds is not trying to be a heritage jeweller. There is no multi-generation family story or in-house museum here, just a specialist built entirely around one technology and one certification standard since 2020. Against online-only lab-grown sellers that ship in from abroad, the advantage is that you can see and compare stones in person at either showroom before committing, which matters more for an engagement ring than for most other jewellery. The trade-off is that the business is small and appointment only, and several practical questions, appointment length, commission lead time, resizing policy, are things you will need to ask about directly rather than read off the site.

That suits a specific kind of newcomer well: someone who already knows they want a lab-grown stone rather than a mined one, who is comfortable booking an appointment and reading the terms and conditions themselves, and who values a transparent CHF price list over a quote-on-request experience. It suits less well anyone who wants same-day retail browsing, or a guaranteed delivery date confirmed in writing before they book an appointment at all.

Verdict

Green World Diamonds is a genuine, still-trading Zurich specialist with two real appointment-based showrooms, transparent CHF pricing that already includes Swiss VAT, full English service, and independently certified stones from IGI, GIA and GCAL. The gaps are real too: no published lead times, no named resizing service, and a footer shipping claim that its own terms and conditions contradict. None of that is a reason to skip a business we list here, but it is a reason to get lead time, resizing and delivery scope confirmed in writing at the appointment rather than assumed from the marketing copy.