The vintage inspired cushion-cut aquamarine and diamond necklace comes with a 12 x 12 mm square cushion aquamarine which weighs approximately 6 carats. Larger size melee diamonds in the halo plus the bezel set diamond bail on top, total 1.26 carats. Pendant is 3/4 inch x 3/4 inch in dimensions. The thin gold cable chain shown is included in price.