Antique old cut diamond 18ct gold snake ring, UK J, US 4.75-5

A gorgeous antique 18ct yellow gold snake ring set with five old cut diamonds, the bright gold is the colour of butter. The snake is tightly coiled with his diamond-studded head laying over his body, adorable, smooth and so wearable, hallmarked for either 1913 or 1937 I just cannot make up my mind!
Ring size very approx; UK J, US 4.75-5
Hallmark; hallmarked 18ct either 1913 or 1937 
Weight; 5.2 grams
Dimensions; setting 10mm at widest and 6.5mm at the back
Condition; good used antique condition, wear commensurate with age
 
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