Usambara Chrome Tourmaline 1.00ct Solid 18K Yellow Gold Ring

Usambaru Chrome Tourmaline 1.00ct,
Dimensions of Tourmaline = 7.34 * 5.09 * 3.75mm,
October Birthstone,
8th Wedding Anniversary Ring,
Solitaire Ring,
Natural and Untreated,
Oval Shape, Excellent Cut,
Clarity = VVS,
Doubly Refractive,
Refractive Index = 1.62 - 1.64,
Usambaru Tourmaline is sourced from Tanzania,
Gold Purity = 18K Solid Yellow Gold,
Gold Hallmark,
Ring Weight = 5.12g,
Bezel Setting,
Ring Size = 7,