18 Karat Gold Plating
The durability play: rich gold color, engineered to be handled.
18 karat plating deposits a gold alloy — 75% gold with hardening metals — that trades a small amount of color depth for a large gain in wear resistance. Where 24K gold is soft enough to show handling over time, 18K deposits are measurably harder and hold their finish under daily contact.
This is the finish we recommend for rings worn every day, watch cases and clasps, eyewear, handled hardware, and any surface where fingers, fabric, or friction are part of the item's life. The color reads as unmistakably gold — slightly deeper and less saturated than pure 24K, closer to what most people picture when they think of fine jewelry.
Like all our gold work, 18K deposits go over a properly prepared surface with a nickel underplate where the base metal calls for it, and thickness is matched to how hard the item will actually be used.
Properties & Benefits
Wear resistance
Alloy hardening gives 18K deposits significantly better scratch and abrasion resistance than pure gold — the practical difference between a finish that lasts months and one that lasts years on a handled item.
True gold color
The classic warm gold of fine jewelry. Slightly deeper than 24K's intense yellow, and consistent across a production batch.
Tarnish resistance
The high gold content keeps the surface stable against oxidation and everyday chemistry — sweat, skin oils, and cleaning products.
Skin-friendly
With a nickel barrier layer beneath, 18K plating keeps reactive base metals away from skin — important for jewelry and wearables.
Common Applications
- Jewelry: daily-wear rings, bracelets, chains, restoration of worn pieces
- Luxury goods: watch components, eyewear frames, pens, handbag hardware
- Automotive: emblems and interior trim that gets touched
- Decorative hardware: faucets, handles, fixtures in high-use settings
Specifications
Deposit thickness is matched to wear class — heavier for daily-contact surfaces, lighter for protected ones — and confirmed in your quote. We follow FTC-relevant thickness guidance for jewelry marking and can plate to a specified microinch target on request.
Our Process for This Service
Identical rigor to our 24K line: full surface preparation, nickel underplate where the substrate requires it, alloy gold deposition under controlled conditions, then thickness check and final inspection.
See the full six-step process →
Turnaround & Volume
Comparable to our 24K service — days for individual pieces, scheduled capacity for batches from jewelers and manufacturers.
Pricing
$500 minimum, $100 per square inch. Every quote is confirmed from photos — see pricing details.
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