The term 'artificial gem' refers to a gemstone that has been created in a laboratory or factory, rather than being naturally occurring. The two crossword solutions for this term are 'PASTE' and 'CUBIC'. PASTE is a type of artificial gem that is made from glass, and is usually cut and polished to resemble a natural gemstone. CUBIC is another type of artificial gem, which is made from synthetic materials such as CUBIC zirconia or synthetic spinel. These gems are usually cut into a cube shape and then faceted to create a brilliant sparkle.