Add to Cart Compare Art Deco, 1920s to 1930s Ostby Barton Aquamarine Ring $1,985.00 Vintage Art Deco Heart Cut Aquamarine Diamond 14k White Gold Ring by Ostby & Barton This is such a stunning Art Deco aquamarine ring, it will take your breath away! Made of 14k white gold, it is set with a large heart cut natural AA aquamarine... Add to Cart Add to Wish List Compare