David Webb White Enamel & Diamond Ring in 18K White Gold. This beautiful modern cocktail ring features a 1.26 carat round brilliant cut diamond set in 18 karat yellow gold. The center stone is accented by baguette cut diamonds and are surrounded by smooth white enamel. David Webb is known for bold pieces like this, with brilliant uses of enamel at play with gemstones. This is a cocktail ring for someone looking to stand out with a memorable piece.