The phrases denote gold alloys with various levels of purity. “Karat” (ok) signifies the proportion of pure gold current within the steel, with 24k representing pure gold. Due to this fact, an 18k alloy comprises 18 elements gold and 6 elements different metals, whereas a 22k alloy contains 22 elements gold and a couple of elements different metals. This distinction in composition considerably impacts the traits of every alloy.
Greater gold content material, as discovered within the 22k selection, usually ends in a richer coloration and elevated malleability. All through historical past, purer types of gold have been favored for ceremonial objects and jewellery the place visible affect and workability are paramount. Conversely, the addition of different metals, equivalent to within the 18k possibility, enhances sturdiness and resistance to scratching, making it appropriate for objects supposed for frequent put on.