Every piece by Martha's Vineyard artist Mary Thomson  of MT Designs is a one-of-a-kind original, and this one is exceptional. You'll glimmer wearing this extravagant triple-strand necklace with a rainbow of semi-precious stones including multi-colored quartz, carnelian, blue topaz, freshwater pearls, amethyst, chalcedony and sterling silver "Bijoux" and "Valentine" clasp.