Authentic 30 inch blue enamel Tiffany chain - 3mm thick

Like new, never worn, just tried on. Super sparkly in person. Looks great with a blue enamel key. Sterling silver with blue enamel and diamond cut finish for super sparkly effect. 30in and this is the thicker version available at approx 3mm thick. AUTHENTIC! Key will be listed for sale separately in my closet (SOLD already!). They pair together well.