Montana Sapphire Makhaira SolitaireSet with a one of a kind, 2. 73ct cushion cut Montana sapphire, in our signature Makhaira setting. This knife edged silhouette is named after the Ancient Greek word for blade and is imbued with a protective warrior spirit. This setting can be customized in your chosen size with your choice of gems, allowing you to select the shapes and colors that are most meaningful to you. This piece can be worn as an engagement ring, cocktail ring or statement