Why I Choose 18k Gold

One of the questions I hear most often is why I build almost all of my work in 18k gold.

On paper, it doesn't always seem like the obvious choice. Fourteen-karat gold is harder, less expensive, and is often recommended for everyday jewelry.

So why do I choose 18k?

The answer has very little to do with marketing and everything to do with the kind of jewelry I want to create.

Gold Should Look Like Gold

Eighteen-karat gold contains 75% pure gold. Fourteen-karat gold contains about 58%.

That difference isn't just a number on a hallmark—it changes the appearance of the metal itself.

When most people picture a gold ring, they're imagining the warm, rich yellow color that has been admired for thousands of years. As more alloying metals are added to increase hardness, that distinctive color gradually becomes lighter and less saturated.

For my work, color matters.

I want the gold to look unmistakably like gold.

Jewelry Is Meant to Live a Life

Many people judge jewelry by how long it stays looking brand new.

I don't.

I believe the best jewelry develops character through wear. Tiny scratches, softened edges, and a gentle patina become part of the ring's story.

That doesn't mean a ring should wear out—it should be built to last—but I don't believe jewelry should spend its life hidden away because someone is afraid of using it.

A wedding ring is one of the few objects we carry almost every day for decades.

It should collect memories, not sit untouched in a box.

Some Traditional Techniques Depend on the Material

One of the defining features of my work is granulation, a technique that dates back more than two thousand years.

Each tiny sphere of gold is individually formed before being permanently attached to the ring.

There are quicker ways to create a similar appearance, but I believe the original technique produces a depth and character that modern manufacturing can't quite replicate.

The method I use works exceptionally well with 18k yellow gold because of the way the alloy behaves during the fusion process.

It's one of the reasons you'll see 18k used throughout much of my collection.

The material isn't simply a design choice—it's an important part of how the jewelry is made.

Every Material Has Its Place

That doesn't mean I believe every ring should be made in 18k gold.

Far from it.

There are situations where 14k gold makes excellent sense. Palladium white gold offers advantages for certain contemporary designs, and platinum remains a wonderful choice for clients who prefer its naturally white color and unique feel.

The right material always depends on the design, the way the ring will be worn, and the priorities of the person who'll own it.

My job isn't to convince every client to choose one particular metal.

It's to help them choose the right one.

Why I Keep Coming Back to 18k

When I sit down at the bench, I'm not thinking about karat percentages.

I'm thinking about creating something that might still be worn fifty or a hundred years from now.

For the jewelry I make, 18k gold offers the color I love, the working properties I trust, and the connection to traditional goldsmithing that first inspired me to pick up the tools.

That's why, time and time again, I find myself reaching for 18k.

Not because it's the only good choice.

Because it's the right choice for the kind of heirlooms I want to leave behind.

About the Author

Nathan King is the designer and goldsmith behind Rings by NK, creating handmade engagement rings, wedding bands, and collector jewelry in the Philippines. His work combines contemporary design with traditional goldsmithing techniques, including granulation, to create modern heirlooms intended to last for generations.