MiaDonna

MiaDonna is a lab-grown diamond and fine jewelry retailer based in Portland, Oregon, selling online and by appointment rather than through a Zurich shopfront. For an expat or international buyer piecing together an order from a Swiss address, that is the first thing to understand: everything happens through the website, a live chat window, or a booked video visit, and the physical showroom is in the US. The company was founded in 2005 by Anna-Mieke Anderson, which puts it among the earlier dedicated lab-grown diamond brands rather than a recent entrant chasing a trend; most of the lab-grown specialists now competing for the same search terms only opened for business well into the following decade.

Shipping to Switzerland

The detail that actually matters for a Zurich buyer is whether the parcel gets here at all, and on what terms. MiaDonna's own shipping page names Switzerland explicitly among the around 50 countries covered by its free international shipping, so this isn't a case of guessing whether a US retailer quietly skips continental Europe. International orders travel by DHL Express Worldwide, a 2 to 5 day service, and need a signature on delivery. The site is direct about what it does not cover: duties, customs fees and local taxes are the recipient's responsibility, and it tells buyers to allow up to 10 days for a shipment to clear local customs before it moves again. That is a different cost structure to a Zurich jeweler quoting a VAT-inclusive Swiss franc price, and worth budgeting for rather than discovering at the door.

Returns run on the same free basis. MiaDonna's return window is 60 days from the date an order ships, with a prepaid FedEx label and no restocking fee. International returns carry extra paperwork beyond the label: the site asks for a Foreign Shipper's Declaration for Returned Goods plus three copies each of the FedEx Airway Bill and Export Commercial Invoice, and the outer box needs to be marked as a return of US goods so it isn't treated as a new import on the way back. Once a return is approved, the window to actually ship it is 7 days. None of that is unusual for a US retailer sending fine jewelry abroad, but it's paperwork a first-time international buyer should read before ordering rather than after, and it's exactly the kind of published detail that lets us list this destination with confidence rather than a guess.

What you get

The catalog covers engagement rings, wedding bands, earrings, necklaces and bracelets, built around lab-grown diamonds or lab-created colored gemstones such as ruby, sapphire, emerald and alexandrite, rather than mined stones. Settings run from a plain solitaire to side stone, halo, hidden halo, three stone, vintage and nature-inspired designs, plus a custom design path if none of the standard settings fit. Metal choices span 14K and 18K white, yellow and rose gold, two-tone combinations and platinum, and diamond shapes cover the full standard set: round, oval, emerald, cushion, elongated cushion, marquise, radiant, pear, princess, asscher and heart. Settings are often sold separately from the center stone, so a listed price frequently covers the mount alone: a side stone design like the Maggie solitaire lists at $1,200 as a setting, while a fuller vine design like the Layla runs to $3,015. The top of the range is an in-house Signature collection aimed at a buyer who wants a larger stone in a more sculptural setting rather than a simple four-prong solitaire.

How it's organised

Everything on the site is grouped by style, shape and metal, which suits a buyer who already knows roughly what they want and just needs to filter down to it. For someone earlier in the process, MiaDonna also runs a diamond comparison guide, a shape guide and a set of educational pages on how lab-grown stones are made and graded, worth reading before a first video appointment. Buyers who want to see pieces in person rather than order sight unseen have two options: a virtual visit, or the flagship Portland boutique, neither of which is a Zurich-based alternative, so anyone who wants to handle a ring before paying should factor in that this stays a remote relationship from start to finish.

Financing and aftersales

The site advertises a buy-now-pay-later plan through Affirm: up to 36 monthly payments at an APR that depends on the buyer's credit, alongside a shorter 0% option split into 4 biweekly payments. That plan is built around a US address and a US mobile number to apply, so it isn't a realistic route for someone paying from Zurich; a card or bank transfer is the practical option for an international order. On the aftersales side, MiaDonna backs every purchase with a lifetime warranty against manufacturing defects in the stone or setting (normal wear, accidental damage and anything serviced by an outside jeweler falls outside it), and includes one free resizing of up to one full ring size within 90 days of delivery, with shipping both ways covered. The 90-day window is generous for someone who orders while still finalizing a partner's size, though the policy doesn't spell out separately how the two-way shipping works for an order that never touched US soil in the first place, so it's worth confirming with the international support line before relying on it for a ring bought from Switzerland.

How it compares

MiaDonna markets itself heavily on sustainability, including a Certified B Corporation badge and a description of itself, on its own blog, as the first B Corp certified lab-grown diamond company. Those are claims the company makes on its own site rather than something backed by a certificate or registry link on the pages we read, so we're naming them as MiaDonna's own claims rather than treating them as independently confirmed. That distinction fits exactly how this category asks a buyer to shop: check the paperwork behind an ethical claim before it factors into a deposit. What is independently checkable is the operating history. Coverage in the fashion and retail trade press corroborates the 2005 founding date and the company's early move into lab-grown stones at scale, and the business is still actively trading, with reviews and social posts running well into 2026.

Who it suits and the verdict

This suits an expat in Zurich who is comfortable buying a ring online from a US retailer, wants a wide choice of lab-grown diamond shapes and settings rather than a narrow local selection, and is willing to budget for Swiss customs charges on top of the US price. It suits a buyer with time to plan around the shipping and customs window rather than someone who needs a ring in hand this week, and it suits someone less concerned with trying a ring on locally before paying, given the nearest showroom is in Portland. The published shipping and returns terms are unusually clear for a cross-border purchase: Switzerland is named outright rather than left to a support ticket to uncover, and that clarity, combined with a free 60-day return window if the ring isn't right, is what earns this listing its place here.