Iolite Straight Drilled Tear Drops measure approximately 7x5mm up to 9x6mm in size, have a glass like luster, excellent faceting, excellent symmetrial shape, superior polish, shows internal characteristics of feathering, gems are well matched for tone on strand, and the hue is pleochroic - the gem changes color as it is viewed in different angles of the stone - showing light violet blue, dark violet blue, and very light grey for an alluring strand of Iolite.