Oval blue Sapphire halo engagement ring. Daisy ring that refers to the famous ring of Princess Diana. Natural diamonds and natural blue sapphire set in 18k white gold. Perfect as promise ring, the sapphire is clean, very nice and uniform blue color, gem recommended! The sapphire is CERTIFIED by a gemological institute. You can notice that it's a sapphire that has not undergone any type of treatment, this makes it extremely rare and precious! The beauty of this sapphire joins the beam of…