Larimar Approximately 7.9mm Inner circumference approximately 16cm (size cannot be changed as it is a ready-made product). To prevent color transfer, the blue nylon elastic cord used at the time of purchase has been replaced with a white nylon elastic cord and strung loosely. It has a lot of white areas, giving it the appearance of ice larimar (white larimar). The stone has small scratches, dents, color unevenness, and chips near the stringing holes. Please refrain from purchasing if you are looking for perfection. 19581