All About Gold

18 carat gold, 14 carat gold, 9 carat gold, platinum… what are the differences in jewelry?

Gold has been the most used precious metal in jewelry for centuries. Timeless and appreciated for its warm brilliance, it comes in multiple alloys and colors, which influence not only its aesthetics but also its value and durability. Among these variations, 18 carat gold and 14 carat gold are often confused, while platinum remains the most luxurious alternative for lovers of noble metals.

Pure Gold: Too Soft to Wear

Pure gold is defined as a 24 carat metal. At this fineness, it is too malleable to be used alone in jewelry. Jewelers therefore associate it with other metals (silver, copper, palladium, etc.) to achieve a hardness suitable for everyday wear while maintaining a beautiful shine.

18 Carat Gold: The Standard of French Fine Jewelry

18 carat gold (or 750/1000) contains 75% pure gold, the rest being made up of alloys that modify its color and increase its resistance.

In France, it is the historical standard of fine jewelry, especially for luxury, antique or second-hand jewelry, where it offers several advantages:

• warm brilliance
• excellent durability
• resistance over time
• great resistance to deformation
• better heritage value

It is also the alloy recognized by the eagle head hallmark, a sign of certified 18 carat gold in France.

14 Carat Gold: More Common Internationally

14 carat gold (585/1000) contains 58.5% gold. It is found mainly in the United States, Germany, and Northern Europe. This purity offers certain advantages:

• superior hardness, ideal for jewelry subjected to shocks
• more accessible price
• slightly less warm color than 18K

However, its heritage value is lower, and its brilliance more discreet. In French jewelry, it is often associated with more industrial or mass-market jewelry.

9 Carat Gold: An Alternative Only for Budget

9K gold (37.5% gold) is even more economical but offers a significantly less intense brilliance. Its resale value is also low. It is rarely used in luxury jewelry or exceptional antique jewelry.

Comparison: 18K vs 14K vs 9K Gold

What about platinum?

Platinum is a precious metal distinct from gold. Denser, rarer, and naturally hypoallergenic, it is often preferred for engagement rings or diamond-set jewelry. It is distinguished by:

• a cool, refined white color
• excellent durability
• very high density
• rarity on the market
• high value

Unlike white gold, platinum does not require rhodium plating to maintain its color and brilliance.

Which metal to choose for a piece of jewelry?

The choice depends on three criteria:
• style: warm yellow gold, modern white gold, romantic rose gold, refined platinum
• use: everyday ring vs. special occasion jewelry
• value: heritage, sentimental, or collection

In fine jewelry, 18K gold remains the benchmark, while platinum is essential for luxury pieces set with diamonds. 14K gold offers a good balance for a wider international market.

FAQ — Frequently Asked Questions

Is 18K gold better than 14K gold?
Yes, in terms of value and brilliance. 14K gold, however, offers slightly superior robustness and a more accessible price.

Why does France favor 18K gold?
For historical, cultural, and quality reasons, particularly in luxury jewelry and antique pieces.

Is white gold platinum?
No. White gold is an alloy (usually 18K) rhodium-plated to achieve a cooler white. Platinum is a distinct metal.

Which metal ages best?
Platinum is remarkably resistant to wear. 18K gold also offers excellent durability over time.

Which is the most precious?
In jewelry, platinum is often rarer and more expensive than 18K gold. But in antique jewelry, the value also depends on the style, era, and craftsmanship.

⤵️

Availability, attentiveness, and kindness are the commitments of Valordiams to sustainably accompany each client in the world of exceptional jewelry.

At Valordiams, I offer a carefully selected range of second-hand jewelry.

Each piece is expertly assessed to guarantee both quality and authenticity.

Whether you are looking for a timeless ring, a necklace full of emotion, or an exceptional bracelet, I have something to fulfill all your desires.

By choosing second-hand jewelry, you are doing much more than buying a piece of jewelry: you are adopting an eco-responsible approach, both ethical and refined.

Why not let yourself be tempted by a piece that, in turn, can tell your own story?