Oro amarillo de 10 quilates.

Gold purity is measured in karats — 24K is pure gold, and each step down replaces some gold with harder alloy metals. 10K contains 41.7% gold and 58.3% alloy (typically copper, silver, and zinc). That alloy content is not a compromise — it's what makes 10K the hardest, most scratch-resistant gold available.

For chains and bracelets worn every day, hardness matters more than purity. A chain worn against clothing and skin is subject to constant abrasion. 10K resists surface scratching and link wear better than 14K or 18K. This is why experienced jewelers often recommend 10K specifically for chains that never come off — it holds its surface quality longer under real daily wear conditions.

The color difference between 10K and 14K is visible side by side but subtle in normal wear. 10K has a slightly lighter, less saturated yellow. For chain styles where the link construction carries the visual interest — Cuban, Franco, Rope — the karat color difference rarely changes the overall look.