How we are keeping the promise.
Care instructions will follow completed testing. Water exposure, sweat, showering, perfume contact and overnight wear are test conditions, not performance claims. If the finish fades, we’ll trade. This is the work behind that aim: what the pieces are made of, what we are testing now, and what we will improve before launch if a sample falls short.
- Base material
- Stainless steel
- Coating tech
- 18K PVD
- Thickness
- Published
- Nickel release
- EN 12472 + EN 1811
Samples in real-life evaluation. Supplier reports received. Independent U.S. laboratory scopes requested, with completed reports published here.
Steel core18K PVDThree layers, and nothing hidden.
Most gold jewelry at this price is brass with a wash of color over it, and nobody will tell you what is underneath. Here is ours, written down before anything is made, then measured and published once it is.
- 01 // The core
- Stainless steel
- 02 // The process
- Vacuum PVD
- 03 // The finish
- 18K gold PVD
Steel rather than brass. That is the part that decides whether a finish wearing thin leaves a green mark, and it is the reason the trade is worth offering. The grade is still being confirmed with the supplier.
Laid down under vacuum rather than dipped in a plating bath. Slower, costlier, and the reason we are willing to stand behind how it wears.
Will verify by: Physical vapor deposition
Eighteen-carat gold, in a color chosen to read warm rather than brassy. How thick that layer runs is the last decision left before the first run, and the number will be published here.
Will verify by: XRF
The macro standard.
Every batch will be inspected under magnification and sent for independent testing before it ships. Pre-production validation is underway, and each completed report will appear here beside the promise it supports.
- Planned independent checks
- EN 12472 + EN 1811Accelerated wear followed by nickel releaseValidation underway
- XRFCoating thickness and compositionValidation underway
- Material verificationBase-metal grade and compositionValidation underway
- Method confirmed with laboratoryCorrosion and artificial-sweat resistanceValidation underway
Inquiry protocol
Document 4.0- Is all stainless steel the same?
- No. "Stainless steel" covers a range of alloys, and they behave differently: the cheaper ones can pit with chlorine and sweat, the better ones hold up. Ours is steel rather than a brass base, which is the difference that decides whether a worn finish leaves a green mark. We are confirming the exact grade with the supplier and will publish it here rather than describe it in words that sound reassuring.
- What does PVD actually mean?
- Physical vapor deposition. It is a vacuum coating process that can produce a harder, more wear-resistant finish than electroplating, which lays a film of gold on top of the base metal in a chemical bath. Process alone does not prove durability, so the finished pieces still have to be tested.
- So how thick is the coating?
- We do not know yet, and we are not going to guess in public. Quotes from suppliers for this kind of coating vary enormously, which is exactly why the number matters. The first batch will be measured by XRF and the reading published here, whatever it says.
- Can I shower with it?
- Yes. SIAFRA is intended to stay on through showers, swimming, sleep, sweat, and ordinary soap. Samples are holding their finish through real-life evaluation, supplier reports are in hand, and U.S. laboratory testing is being arranged. The guarantee already stands: if it fades, we’ll trade.
- Why is it more than the ten other sites selling this?
- We specify the base metal and finish, and back the pieces with our trade promise. Product pages show planned prices; final pricing and completed test results will be published before release.
- How will you verify the specs?
- SIAFRA has received a supplier SGS report from April 2026 showing nickel release below detection and cadmium and lead not detected against European REACH limits. We have also requested testing scopes from U.S. laboratories and will publish completed independent reports.