Centering on a rectangular cut blueish green tourmaline within a diamond set platinum mounting , retrofitted with a white gold FINGERMATE hinged shank.

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This Gorgeous Tourmaline and Diamond Ring is available at Christie’s Auction on Feb. 6, 2018

Metal: Platinum, 14k white gold
Diamonds: 6 baguette cuts with total approximate weight of 0.30 carat
Tourmaline: One rectangular cut measuring approximately 13.4 x 11.3 x 7 mm 
Size/Dimensions: US ring size 5 
Marks: FINGERMATE
Gross Weight: 8.5 grams