Vintage 1920's Pink Sapphire & Diamond Ring in 18kVintage 1920s Pink Sapphire Diamond Ring in 18k. This ornate Art Deco ring features a 1. 17 carat round cut pink sapphire with . 07 carats of small diamond accents and is set in 18 karat white gold. The setting combines a beautiful lattice of milgrained filigree wire work with a neat line of diamonds running lengthwise up the shoulders. This is an amazing way to add some bright pink to your life in a exquisite vintage setting!