22 ct is the most well known carat purity
Most common carat contents:
Whilst purity ranges from 1 carat to 24 carats, the most common carats for general use are 9 carat, 14 carat, 18 carat, 22 carat and 24 carat (UK) and 10 carat (karat), 15 carat (karat), 20 carat (karat) and 24 carat (karat) (US). Most gold items in these ranges will be gold jewellery including gold rings, gold necklaces, gold bracelets, gold brooches, gold earrings amongst others. In the UK the minimum carat that gold is sold in is 9ct and this is probably the most prevalent purity rating throughout the country. Whereas in many South Asian countries, such as India, 22ct gold is most common. 22ct gold is also preferred and popular in many African and Middle Eastern countries.
Origin of the word Carat
Carat is currently known as a unit of measure of purity for gold alloys, for example your gold jewllry may be 22ct gold giving it a purity of 91.66%. The word carat derives from the Greek "fruit of the carob" referencing the caraab seeds that were used on precision scales to measure the weight of gold and precious stones in ancient times
Abbreviations of carat:
Carat, Ct, Ct., C, Karat, Kt., Kt, K, 22, 22k, 22/22k, Chuk Kam