WOW! This magnificent, huge turquoise disc is a piece of art work all by itself! What a beautiful and enchanting mix of colors and so full of soul! I wanted this one-of-a-kind necklace to be a cohesive, simple palette of turquoise, and I just added some brass and copper to the mix to accentuate the gorgeous greens and blues! Most of this turquoise if from the famous Hubei mine in China and I have mixed in some other random beads as well. This art-to-wear masterpiece is 18" with a 4" extender and the disc itself is about 3.25" in diameter.