Ruby diamond gold band ring -

18k yellow gold, set with three rows of rubies outlined by diamonds.  


N. 13 oval-shaped rubies, weighing a total of approx. 5.80 ct, and 22 brilliant-cut diamonds, estimated to weigh a total of approximately 0.50 ct, colour H, clarity VS-SI, as gauged in the mount.


Hallmarked: "750". 
IT size 17 ½ - US size 8 ½. Weight: 13.4 g.


Accompanied by a gemological certificate from the Istituto Gemmologico Nazionale (IGN).
The lot is in a good state of preservation with normal signs of use over time.
The rubies are medium intense red colour with a slight pinkish hue and minor inclusions. Twelve rubies origin: Burma. One ruby origin: Siam. The rubies show no evidence of heat treatment. 
Apparently not hallmarked, verified with xrf spectrometer, is guaranteed to be gold at approximate finess of 18k.