Tiffany & Co. Platinum Diamond Horse Shoe Necklace

Vintage Tiffany&Co. platinum horse shoe necklace set with 18 round brilliant cut diamonds.
Total diamond weight: 0.20 carat. Color: F-G, Clarity: VS
Measurements:
Pendant: 1/2 inch L x 1/2 inch W
Necklace length: 16 inches
Weight: 3.5 grams
Chain and horse shoe marked: TIFFANY&Co. PT950
Tiffany & Co. box included.