Wow! This necklace has been made (by me!) using faceted amethyst beads which have been alternated with 925 sterling silver beads which I think shows the amethyst at it's best.  The necklace has been completed with 925 silver findings.
 
It is the birthstone for Pisces and the month of February, and the gemstone for the 6th anniversary of marriage.
 
This necklace measures 20 inches / 50cms long.