Emerald and diamond necklaces at Kay Jewelers pair rich green gemstones with iconic diamond sparkle. Discover necklace styles with emeralds surrounded by diamond halos, three-stone designs that balance emeralds with diamonds, and pear or drop station necklace styles with these luxurious gemstones. Find emerald and diamond necklace styles to add to your collection or to gift for birthdays, anniversaries, or just because.