Two of the most popular gold hallmarks - 585 and 750 - differ not only in purity but in durability, appearance, and price. We explain everything you need to know before buying.
What Do the Numbers Actually Mean?
Gold hallmarks reflect the metal content per thousand parts. 585 means 585 grams of pure gold per kilogram of alloy - that's 14 karats (58.5% gold). 750 means 750 grams per kilogram - 18 karats (75% gold).
The remaining percentage consists of alloying metals: copper, silver, palladium, or zinc. These additives give gold its color, hardness, and workability.
Color and Appearance
The higher the gold content, the richer the yellow hue:
- 585 gold - slightly lighter, closer to champagne or pale yellow. It can be tinted rose (with copper) or white (with palladium/nickel).
- 750 gold - deeper, warmer, more saturated yellow. The classic "gold" color most people picture.
Both alloys accept rhodium plating equally well, which is used for white gold jewelry.
Durability
This is where 585 has a clear practical edge:
| Property | 585 (14K) | 750 (18K) |
|---|---|---|
| Hardness | Higher | Lower |
| Scratch resistance | Better | Less |
| Everyday wear | Excellent | Good |
| Tarnishing | Nearly none | None |
The higher copper or silver content in 585 makes it harder and more resistant to daily wear. Rings, bracelets, and chains in 585 last longer without visible scratches.
Price Difference
750 gold costs roughly 25–30% more than 585 of the same weight, because it contains more pure gold. However, for finished jewelry the price gap can be larger - craftsmen often work with 750 for higher-end pieces, adding to the overall cost.
At Diamond Gold Company, most of our everyday collection is made in 585 precisely because it offers excellent quality at a more accessible price point.
Which Should You Choose?
Choose 585 (14K) if:
- You wear jewelry daily - rings, bracelets, chains
- You want the best durability-to-price ratio
- You prefer a lighter, more delicate look
Choose 750 (18K) if:
- You want maximum gold content
- You're buying a statement piece for special occasions
- You're sensitive to nickel (750 white gold typically uses palladium, not nickel)
- You want deeper, richer color
The Bottom Line
Both hallmarks are real, high-quality gold. The choice comes down to your lifestyle and budget. For everyday jewelry, 585 is the practical champion. For a special-occasion piece where richness of color matters, 750 is the premium choice.
Browse our collection of 585 and 750 gold jewelry to find what suits you.