Valuing Antique Diamond u0026 Amber Rings by Dr LoriFeatured Refinements Art Deco Engagement Ring. Ring Size (US) 4.5.6.7.8.9.10.11.12.13.14 Available. Vintage art deco engagement filigree ring 14k white gold over 1 ct round diamond this item is in the category jewelry & watches\vintage & antique jewelry\fine\art nouveau/art deco 1895-1935\rings.