Victorian Old European Cut Diamond Engagement Ring 14k Yellow GoldVictorian Old European Cut Diamond Engagement Ring 14k Yellow Gold. This antique Victorian engagement ring features a . 30 carat Old European cut diamond set in 14 karat yellow gold. The center stone sits inside a rather dramatic prong setting with six wide scooped out sections giving more space to the mounting. Intricately carved shoulders complete the ornate look for this unique piece of history.