Julianna B. Tanzanite Halo Cocktail Ring

Nordstrom

Central stone shape (oval) and color (purple) match, Halo design with smaller purple/blue stones matches, Silver-toned metal matches, Overall cocktail ring style and intricacy match, Stone arrangement and proportions are highly consistent

Miadora Sterling Silver Amethyst and Tanzanite Cocktail Ring

Overstock

Central stone shape (oval) and color (purple) match, Halo design with smaller purple/blue stones matches, Silver-toned metal matches, Overall cocktail ring style and intricacy match, Stone arrangement and proportions are highly consistent

Men's Emerald Cut Purple Stone Cocktail Ring

Etsy - TIMATIBO

Product category (cocktail ring), Silver-toned setting, Large emerald-cut central stone, Purple-blue color-shifting stone