In this series, using hollow and semi-hollow glass beads, I have tried to duplicate the beauty of natural gemstones - aquamarine, ametrine, peridot, rose quartz and tourmaline.  These beads are free form and are not meant to be identical in size and weight.  Length of each necklace is 495 mm (19.5 inches).  Weights are: rose quartz - 190 grams (6.7 ounces),  aquamarine - 148 grams (5.2 ounces), ametrine - 157 grams (5.5 ounces),  peridot -  201 grams (7.1 ounces), tourmaline - 157 grams (5.5 ounces).