14K Yellow and White Gold. Two tone. 1.45 Carat Solitaire Diamond. I1 Clarity and G color. Beautiful 6 prong setting. The Tiffany six-prong setting, introduced over 125 years ago, is the iconic image of the engagement ring. This look helped popularize the giving of diamond solitaire rings for engagements, and it remains a favorite. Six prongs hold a diamond more securely in place. If a prong is accidentally sheared off in a four-prong setting, the center stone can easily fall out (and get lost). If a prong breaks in a six-prong setting, chances are the center stone will remain firmly in place.Six prongs offers better protection to the diamondÂ’s girdle than four prongs.Six prongs can make a round shaped diamond or gemstone look rounder.