Krystal is of Greek origin, derived from the word 'krustallos', meaning 'crystal'. This name was introduced into English-speaking countries in the late 19th century and has since gained popularity as a female given name. It was particularly fashionable during the 1970s and 1980s, often used for girls born during these decades.
"Krystal experienced a significant increase in popularity between 1978 and 1986, peaking with 28 births in 1986. After that, the number of girls named Krystal began to decline, reaching a low of seven births in 1987. The name's popularity remained relatively stable throughout the early 1990s."