Vintage Diamond Rings by Aidah Jewelry › DECO Image 1 of 4 Image 2 of 4 Image 3 of 4 Image 4 of 4 DECO $1,600.00 Gorgeous .4 ct. G color VS clarity Old European Cut diamond in original yellow gold Art Deco setting. Vintage. Free Sizing. Purchase Added! Gorgeous .4 ct. G color VS clarity Old European Cut diamond in original yellow gold Art Deco setting. Vintage. Free Sizing.