Earrings are 14K, butterfly backs are 18KWeight: 3.5 GramsStone: Aquamarine (8x5 mm) & Approx 0.24 TCW (0.015-0.03 ct) DiamondsMeasurements: 20.0 x 8.5 mmHallmark: Earrings-14K Tested. Butterfly backs-18KITEM #:BR-1110-113023-14