304 vs 316L Stainless Steel: What's the Real Difference in Jewellery?

TL;DR: 316L stainless steel contains added molybdenum, which makes it more corrosion-resistant and better suited to everyday skin contact than 304. The difference matters most for people with sensitive skin or anyone wearing jewellery daily in humid climates, where 304 is more likely to develop surface rust over time.

Most jewellery listings say "stainless steel" and stop there. That single phrase covers a range of grades, and the grade is what actually determines whether a piece holds up to daily wear or starts showing wear within a year.

What the Numbers Actually Mean

Stainless steel grades are defined by their alloy composition. 304 is the most common general-purpose grade, used widely because it's affordable and reasonably durable. 316L adds molybdenum to the mix, which significantly improves resistance to corrosion, particularly from chlorides, sweat, and moisture, all of which jewellery is constantly exposed to.

Why This Matters for Jewellery Specifically

Jewellery sits against skin for hours a day, often through workouts, humid weather, and the occasional shower. 304 steel handles this reasonably well but is more prone to pitting or surface corrosion over years of exposure, especially in coastal or high-humidity regions common across India. 316L, sometimes called "surgical steel" for its use in medical implants, holds up considerably longer under the same conditions.

How to Tell What You're Buying

Reputable brands state the exact grade in their product description. If a listing simply says "stainless steel" with no grade specified, it's worth asking before buying, particularly for pieces meant for daily wear rather than occasional use.

• 304 steel: fine for occasional-wear pieces, statement jewellery worn a few times a month.

• 316L steel: the better choice for daily-wear pieces, especially rings, bracelets, and anything worn during exercise or in humid weather.

Éktaraa uses 316L stainless steel as the base for all pieces. Read more in our full material guide, or browse the collection directly.

Frequently Asked Questions

Is 316L stainless steel better than 304 for everyday jewellery?

Yes, particularly for pieces worn daily or in humid climates, since 316L resists corrosion and pitting better over the long term.

Does 304 stainless steel rust?

Not typically under normal conditions, but it's more prone to surface corrosion over years of heavy sweat or moisture exposure compared to 316L.

Is 316L stainless steel hypoallergenic?

316L is widely used in medical implants due to its low reactivity, making it a common choice for people with nickel sensitivities, though no metal is guaranteed hypoallergenic for every individual.

How can I check which grade my jewellery is made from?

Check the product description or ask the seller directly. If the grade isn't listed, that's usually a sign the brand is using a lower-cost, unspecified alloy.