"The Solitaire" Sz 7.5 Ring - This BEAUTY is a One-Of-A-Kind, Sz. 7.5 Ring Featuring a BRILLIANT & Rare Specimen of Koroit, Patterned Boulder Opal with Excellent Flashes of Green, Orange & Iris! It's Accented by Faceted & Bezel-set Mandarin Sapphire & Set in Anti-tarnish Treated Sterling with 18K Gold Accents. This is an Excellent Everyday Ring for the One Who Loves 'Different' & It's an Exquisite Option for an Alternative Engagement Ring... BEAUTIFUL!