For sale is a brand new, never used, genuine and authentic: 

David Yurman 8mm Petite Infinity Birthstone Necklace in Blue Topaz, Diamond, and Sterling Silver

-It lists for $450

-Approximately 17" long tiny box chain in sterling silver that can be worn at 15" 16" or 17"

-8mm pendant with blue topaz and 0.084 CTW diamonds

-Blue Topaz is a birthstone for December birthdays

-Marked with "(C)D.Y. 925" on the back of the pendant and on a tag near the lobster claw lock

-The necklace comes in a David Yurman gift box with a certificate of authenticity.

-US customers: I ship for free with USPS priority mail and offer express shipping for $30