Material... K18 (18 karat gold) Color... Black Decoration... Pearl The Radiance of the Night Sky - Necklace with Black and Large White Freshwater Pearls This necklace boldly uses black freshwater pearls with various colors and luster (deep black, greenish, bluish, etc.) and large white freshwater pearls. Combined with the brilliance of 18-karat gold parts, this one-of-a-kind necklace exudes a beauty like a shining night sky. It has both the splendor suitable for special occasions and a sophisticated elegance. Perfect as a reward for yourself or as a gift for someone special. Why not wear the radiance of the night sky? Black Freshwater Pearls: 9mm - 11mm; White Freshwater Pearls: 13.5mm x 1, 11mm x 2 18K Gold Parts x 6; Approximately 1.9 grams; Total Length: 46 cm The clasp uses a magnet and is plated, but it is not allergy-friendly. There are circles and imperfections, and the shapes and colors are irregular. Please refrain from purchasing if you are critical of the product, and we ask for understanding. A case is not included as we want you to use it as much as possible.