Gorgeous Fancy Vintage 10K Yellow Gold Large Smoky Topaz/Quartz Statement Ring by Esemco. Size 7.5
My personal ring from the 1950's. Sold to me as a smokey topaz if memory serves.
Hollywood Regency Era. Very good to Excellent condition. 
Large emerald cut stone is about 12 x 16 mm and placed in a gorgeous cage like raised 4-prong setting.
Stamped 10k Esemco. Total weight about 6.3 grams. 
Pictures taken with and without flash so colors may vary. 
Mid-Century Modern MCM American artisan craftsmanship. 
Comes in black velvet box shown. FREE SHIPPING!
Vintage item so please expect surface wear, soil, smudges, and minor scratches. 

Research - "ESEMCO" is the trademark of the Shiman Manufacturing Company based in Newark, New Jersey. Founded in 1905, Esemco is highly regarded for its high-quality gold jewelry and intricate filigree designs.