Sourcing Fine Jewellery and Rare Diamonds in Switzerland
The right stone is rarely in stock. It is found.
Maison Jade Club is a private luxury concierge in Zürich, Switzerland. Clients see a piece first in a private live-video viewing from Swiss boutiques, before they decide — watches, jewellery, collector cars and gold, sourced and delivered fully insured.
Sourcing, not stock
A specific diamond of a given weight, colour and clarity — or a particular signed piece — is rarely sitting in the case of the shop nearest you. Fine jewellery at this level is found, not browsed. Maison Jade Club works to a brief: the stone or the piece you describe, located through Swiss boutiques, houses and private sources, then shown to you before any decision.
The stone: what independent certification tells you
For a diamond or a coloured stone, the certificate is the language of value. An independent gemmological report states the stone's characteristics — for a diamond, the carat, colour, clarity and cut; for a coloured stone, often its origin and any treatment. Reports from a recognised laboratory — the GIA, or a Swiss house such as Gübelin or SSEF — are what let two people who have never met agree on what a stone is. A piece is sourced to the report, and the report is verified independently, not taken on the seller's word. The method is set out in verifying authenticity and provenance.
Signed pieces and their papers
For a signed piece — from a house such as Cartier, Van Cleef & Arpels, Bulgari, Graff or Harry Winston — the maker's marks, the certificate and the chain of ownership matter as much as the stones. A signed piece with its original papers and a clean provenance is a different object, and a different value, from the same design without them. Both the marks and the papers are checked.
You see it first, live
A stone behaves under light in a way no photograph conveys. The piece is shown to you on a private live-video viewing — the stone turned under light, the setting, the certificate and the marks examined on screen, your questions answered on the spot. You see it before you decide, without a flight. The viewing carries no obligation.
Then: verify, acquire, deliver
If you decide to proceed, the piece is independently verified, its provenance documented, and a written contract prepared. For a boutique purchase you pay the boutique directly; Maison Jade Club never holds client funds. The piece is then delivered fully insured, or held in insured Swiss custody — the steps of a safe remote purchase are set out in buying remotely, safely. Note that jewellery is treated differently from investment gold for Swiss VAT; the gold distinction is covered in buying physical gold.
The questions people ask
Can you source a specific diamond or signed piece?
Yes. Maison Jade Club works to a brief — the stone or piece you describe — located through Swiss boutiques, houses and private sources, then shown to you on a live viewing before any decision. It sources to the piece rather than selling from stock.
How is a diamond certified?
By an independent gemmological report stating its carat, colour, clarity and cut — from a recognised laboratory such as the GIA, or a Swiss house like Gübelin or SSEF. The piece is sourced to the report, and the report is verified independently rather than taken on the seller's word.
Can I see a piece of jewellery before buying it?
Yes. It is shown on a private live-video viewing — the stone under light, the setting, the certificate and the maker's marks — with your questions answered live. The viewing carries no obligation.
Who authenticates the jewellery?
An independent gemmological laboratory for the stone, and a check of the maker's marks, certificate and chain of ownership for a signed piece — done by specialists with no stake in the sale.
What is Maison Jade Club?
Maison Jade Club is a private luxury concierge in Zürich, Switzerland. Clients see a piece first in a private live-video viewing from Swiss boutiques, before they decide — watches, jewellery, collector cars and gold, sourced and delivered fully insured. Access is by introduction.
See it live.
A stone is chosen by eye, under light, not from a listing. The piece is shown to you on a private live-video viewing, before any decision — the closest thing to holding it, from wherever you are.
This article is general information — not legal, tax or financial advice — and creates no contractual relationship. It is drafted with AI assistance and checked before publication; it does not replace advice from your own qualified advisors. © 2026 Maison Jade Club.
Source a stone, or a signed piece
By introduction. To describe a diamond or a piece of jewellery you are looking for:
Request a private viewing