Shapely chic. This faceted oval aqua agate (10 ct. t.w.) pendant makes a colorful statement and brings a vibrant touch perfect for any occasion. Approximate length: 18 inches. Approximate drop: 1-3/8 inches. Approximate drop width: 5/8 inch. Almost all gemstones and blue and black diamonds have been treated to enhance their beauty and require special care. All gemstone carat weights (ct. t.w.), if mentioned, are approximate; variance may be .05 carat.