Larimar Approximately 8.3mm Inner circumference approximately 16cm (size cannot be changed as it is a ready-made product). Re-strung loosely with white nylon elastic to prevent color transfer from the colored elastic. Includes beads with greenish color unevenness and small flat areas. The stones have small scratches, dents, color unevenness, and chips near the stringing holes. Please refrain from purchasing if you are looking for perfection. 21472