Antique Art Deco 18K White Gold Diamond Engagement Ring by Ciner Manufacturing Co of New York City. The ring is in excellent estate condition and ready to wear. It is hallmarked 18Kt CMC. The CMC mark is the makers mark of Ciner Manufacturing Co of New York, New York. The company was founded about 1920 and specialized in wedding / engagement rings. The ring is set with an approximately .15 carat H color Vs1 clarity transition cut diamond.

The ring is a size 6.25 - 6.5 and weighs 2.1 grams. The ring stands about 6mm high off of the finger.