Hi, sorry for the late response, but you should be fine. Most granite is really hard to stain, even when unsealed. If you start to see water rings staying in your stone, then it's time to seal again. If you are worried about it, you can always seal 2-3 times a year. It's easy to do on your own. At the minimum, you should seal once a year. More on care and feeding for granite here: http://granitegrannies.com/how-to-clean-maintain-repair-granite-countertops/
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