2ct Tanzanite and Diamond Halo Necklace in 18K Gold Asteria CollectionThis impressive statement ring features an exceptional cushion cut tanzanite, designed to show off its beautiful blue violet sparkle. Adding to the radiance is the diamond halo which surrounds the main gem. With a sumptuous yellow gold setting that contrasts beautifully against the blue violet tanzanite and white diamonds, its an heirloom quality piece that will bring you a lifetime of joy and wear.