This necklace is 18k white gold and weighs 39 grams. The necklace is a selection of natural rainbow colored sapphires. The sapphires grouped by color in nine spheres and then throughout the necklace in 5×3 oval 5×3 shapes. Each oval is bezel set on the chain. The necklace has a combined total weight of 55 carats. The metal is plated with black rhodium.