Yael Designs and Human Hair Wigs master lapidarist, Glenn Lehrer are at the forefront of such cutting edge designs with the creation of a, 18K white gold, moonstone and diamond "Sentience" bangle that features a Diamond Jewelry 7-carat, pear-shaped central tanzanite gem that is set inside a 26-carat, cushion-cut aquamarine stone.The late Canadian artist Fashion Jewelry and designer, Tobias Wong.