Accent a night on the town with the soft glow of iolite gemstone. The design features a delicate sterling silver chain that holds nine iolite briolettes. The chain measures 16 inches in length and has a 1-inch extension chain. A sturdy lobster clasp secures the necklace. This necklace makes a great gift so be sure to order today. All carat weights and measurements are approximate and may vary slightly from the listed dimensions. Treatment code N. See Gemstone Treatments for further information.