The Definitive Guide to Gold

The Definitive Guide to Gold

Gold purity is measured in karats (k)—the higher the karat, the greater the percentage of pure gold. In the U.S., the minimum standard for "solid gold" was traditionally 10k, but in 2018, regulations changed to allow 9k to be marketed as solid gold.

Here’s a breakdown of gold karats and their gold content:
● 9k = 9/24 = 37.5%
● 10k = 10/24 = 41.7%
● 12k = 12/24 = 50%
● 14k = 14/24 = 58.3%
● 18k = 18/24 = 75%
● 20k = 20/24 = 83.3%
● 22k = 22/24 = 91.6%
● 24k = 24/24 = 99.9%

Most fine jewelry is made with 14k or 18k gold. These blends strike a good balance between durability and gold content—ideal for everyday wear—while higher karats like 22k and 24k are softer and more prone to scratching.

Demi-Fine Gold Jewelry

If solid gold is outside your budget, demi-fine options offer an affordable alternative. While they don’t carry the same long-term value or hypoallergenic properties as solid gold, they can still last with proper care.

Gold-Plated

● A very thin layer of gold over a base metal (often brass or copper)
● Not hypoallergenic
● Least expensive, but also the least durable

Best for occasional wear; will tarnish or fade over time.

Gold-Filled

● A thicker layer of gold is mechanically bonded to a base metal (typically brass)
● Gold must make up at least 5% of the total weight
● More durable than gold-plated
● It can irritate sensitive skin once the gold wears away

Gold Vermeil

● A layer of gold (at least 2.5 microns thick) over sterling silver
● Most hypoallergenic among demi-fine options
● It will wear over time, but it is more durable than gold-plated.
● The gold layer is thinner than gold-filled, but thicker than plated.

How to Choose the Right Gold for You

Every option has its pros and cons. The major downside of solid gold is its cost, but it’s also the most durable, hypoallergenic, and sustainable, as it can be endlessly recycled and passed down through generations.

As a young woman with severe metal allergies, I’ve found solid gold to be a worthwhile
investment. I can wear it 24/7 without discomfort, and it carries sentimental value that can last a lifetime. That said, I still enjoy the occasional demi-fine piece, especially for themed events or bolder styles that aren’t worth the full gold price tag.

For those with sensitive skin or metal allergies, sterling silver, gold vermeil, and gold-filled are great middle-ground options. They offer beauty and comfort without breaking the bank, and with the proper care, can last for years.