Striking London Blue Topaz free form facet cut graduated beads with 14KW lobster claw clasp 18 1/2' long, 440 carat total weight; beads range from 16-20mm long to 14mm wide. Hand knotted on 100% silk sky blue thread. A stone of equanimity, Blue Topaz resonates with the astrological signs of Virgo (Mercury) and Sagittarius (Jupiter). Certificate of authenticity available.