Tiffany & Co. 

Tiffany Jazz Platinum Diamond Pendant Necklace

Pendant in platinum with 4 bezel-set round brilliant diamonds
Carat total weight: 0.36
Pendant:  9mm x 9mm
Chain length:  18"  (originally 16" with a 2" extension added during time of purchase directly at Tiffany&Co.)
Hallmarked:  "©TIFFANY&Co." / "PT950" 

All original packaging (box, pouch, ribbon and notecard) included.