17x12mm Silver TierraCast Greek Letter Charm - Sigma - Each
Sigma is the 18th letter of the Greek alphabet and is equivalent to our letter 'S'. In mathematics, the upper case sigma is used for the summation notation. The lower case sigma stands for standard deviation.These antique Fine Silver plated charms allow you to add personalized messages to DIY jewelry. Each round charm measures approximately 17x12mm including loop and meets the EU Nickel Directive.

Design Idea
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