Sky Blue Topaz Double Drilled faceted marquise measure approximately 11x7x5mm in calibrated size, beads are a medium light sky blue hue with a very very slight grey tone throughout the strand, the gems are calibrated - expertly cut and well polished for a brilliant group of symmetrical marquise, and the gems are transparent with minute internal characteristics for a delicate strand of blue topaz beads with rarely seen double drill holes at top and bottom. AAA Quality