Precious One is a term that can be used to refer to something or someone that is highly valued. The crossword solutions for this term are GEM, DEAR, and PEARL. GEM is a three letter word that refers to a precious stone, such as a diamond, ruby, or sapphire. DEAR is a four letter word that is often used to express affection or endearment. Lastly, PEARL is a five letter word that is a type of gemstone made from the shells of mollusks.