How to Test If Your Jewellery Is Truly Anti-Tarnish: 4 At-Home Tests & Material Checks
⚡ Key Takeaways
- You can easily verify your jewellery's base metal and tarnish resistance at home using simple, safe testing methods.
- Surgical stainless steel (316L) is non-magnetic or very weakly magnetic, non-porous, and impervious to saltwater corrosion.
- Genuine 18K gold PVD will not flake or change colour when exposed to alcohol wipes or warm soapy water.
Want to verify whether the new earrings or necklace you purchased are genuinely anti-tarnish? Here are 4 reliable tests you can conduct at home without damaging your jewellery.
The 4 At-Home Verification Tests
Featured House of Zena Piece
The Side-Eye Charm Drops
18K Gold PVD • 316L Surgical Stainless Steel • 100% Waterproof & Anti-Tarnish
1. The Alcohol Wipe Test
Rub an isopropyl alcohol wipe or sanitiser cotton pad vigorously against a small section of the jewellery for 15 seconds. If the jewellery is coated with cheap anti-tarnish lacquer, the pad will show yellowish discolouration. Genuine 18K PVD gold on stainless steel will wipe completely clean with zero colour transfer.
2. The Saltwater Soak Test
Mix 1 teaspoon of table salt into a bowl of warm water (simulating heavy sweat and ocean water). Submerge the piece for 12 hours. Brass or alloy pieces will show green oxidisation spots at seams and clasps. Authentic 316L anti-tarnish jewellery will emerge completely unaffected.
3. The Scratch & Seam Inspection
Look at the jump rings, clasps, and inner curves with a magnifying glass or phone macro lens. Cheap plating shows bare grey or orange metal in deep crevices; PVD vacuum plasma coats every microscopic angle with uniform 18K gold density.
4. The Skin Contact Test
Wear the piece during an intense workout or a hot shower. If you experience zero itching, no skin greening, and no metallic odour, your piece is genuine medical-grade anti-tarnish jewellery.
Shop tested, guaranteed pieces: explore House of Zena Bestsellers.
Featured House of Zena Piece
The Strawberry Milk Huggies
18K Gold PVD • 316L Surgical Stainless Steel • 100% Waterproof & Anti-Tarnish
Explore Everyday Demi-Fine Jewellery