1.50 Carat Art Deco Diamond Two-Tone Engagement Ring1. 50 Carat Art Deco Diamond Two Tone Engagement Ring. This dazzling Art Deco engagement ring features a 1. 50 carat round brilliant cut diamond accented by . 18 carats of smaller diamonds and finished in 14 karat white and yellow gold. The prominent center stone sits atop cascading steps holding the accent stones that taper down into the yellow gold shank. From the side the primary stone is flooded with light to enhance its sparkle. The contrasting