Aquamarine Necklace - Agate, Moss Aquamarine, Sunstone, Spessartite, Hessonite Cluster Pendant - Abbi Necklace. A dramatic elongated agate briolette in rusts and aqua green is crowned with a generous cluster of gemstones consisting of moss aquamarine, sunstone, spessartite and mystic hessonite to create the perfect fall/winter necklace. This intriguing pendant is suspended from a delicate hand-linked chain of aquamarine. This gorgeous combination of colors with warm and cool colors would be gorgeous on any coloring or complexion. Size: 26.5 inches long / 2.5 inches pendant drop X .80 inches wide (clusters).