Vintage USSR Soviet Union Art Deco Alexandrite 583 Solid Yellow Gold Ring 8.75 This is a USSR stunner, gold rings are not made like this anymore. Beautiful intricate art deco detailing with a sparkling alexandrite set in the center. This stone can change color depending on the light! Alexandrite about 15mm x 8mm Total weight is 5.72 grams Note this is 583 - a Soviet Union gold grade that is a hairline below the 14k gold grade (which is 585)