Art Deco Period - 18ct White Gold Stunning Emerald and Diamond Set Dress Ring. c1930's. The Step-cut Natural Colombian Emerald of Top Colour. Est Size 3.00 cts. The Surrounding Round Cut Diamonds of Excellent Colour and Clarity. Est Diamond Weight 1.50 cts -1.70 cts. Ring Size - N. Excellent Quality Emerald / Diamond Ring, At Low Estimate.