Sleek, rock crystal pendant by Elsa Peretti for Tiffany & Co. hands from a platinum cable chain and measures 1.5" in diameter. Comes with Tiffany / Co. Blue pouch. 
 
Designer: Elsa Peretti 
Weight: grams 
Length: 15" plus Crystal 1.5" 
Width: 1.5" 
Main Stone: Crystal 
Metal Purity: Platinum
Hallmarks: Tiffany & Co. PT 950
Era: Contemporary 
Condition: Preowned, Excellent