Coincidence

Paula was born in Colombia in South America, by far the world's foremost provider of emeralds. Mum was born in Washington in North America, where the biggest city is Seattle and has the nickname Emerald City. This nickname is due to the evergreen trees surrounding the city. Is it a coincidence that the two most important females in my life have connections to the same jewel? I do think so, but it is still a sparkling coincidence.