Vintage 10K Solid Gold and Ruby Ring

Very cute and minimalist 10K yellow gold ring with 3 tiny pink rubies. The band is very thin and it is a nice dainty ring. It is stamped 10K and CMC (Canadian Manufactuing Company). I am unsure if the rubies are natural or lab created, but it is quite an old ring so they are more likely real. Size measures about 5.75. Weight is 0.90 grams.