What does 1.2 CTTW mean for earrings?

For earrings, 1.2 CTTW means that the pair has a total carat weight of 1.2 carats. A carat is the unit of measurement used for pearls and precious stones, and one carat equals around 200 milligrams. The total carat weight represents the combined carats from each earring. With a total carat weight of 1.2, each earring would be 0.6 carats. On 1stDibs, find a large assortment of gemstone earrings.