18K gold, also called 750 gold, is an alloy of 750 parts fine gold per 1,000 (75%). It is the standard of fine jewelry for its balance of purity, color and strength. Each piece page states the gold fineness and, where available, the weight in grams. Your advisor confirms missing weights before any payment.
Karats and fineness, in one table
| Karat | Fineness | Fine gold | Typical use |
|---|---|---|---|
| 24K | 999 | 99.9% | Bullion and coins; too soft for most jewelry |
| 18K | 750 | 75% | Fine jewelry; the Eternal Maison standard |
| 14K | 585 | 58.5% | Commercial jewelry |
Italian gold and Colombian gold
“Italian” or “Colombian” describes where a piece comes from, not its purity. An 18K piece has the same fineness wherever it was made. Your advisor tells you the origin of each piece.
18K gold, 750 fineness
18K gold contains 750 parts of fine gold per 1,000. The Maison works with Colombian and Italian 18K gold; your advisor confirms the origin of each piece when that information is available.
Frequently asked questions
Is 18K gold pure gold?
No. 18K gold contains 750 parts gold per 1,000; the rest are other metals that give it strength and color. Pure gold is 24K and is too soft for most jewelry.
What does “750” mean?
It is another way of expressing 18K gold: 750 thousandths of fine gold in the alloy.
Does 18K gold tarnish?
With wear, 18K gold can lose some of its shine. Appropriate cleaning helps restore it.
Read this guide in Spanish (in Spanish)
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