What is a 8 piece set of Nancy Sango China worth?
You can find out by posting it on craigslist, ebay, or amazon
What the worth for dinnerware set old sango china grey mist serves 8?
Beats me, I don't know the condition and I won't believe your assessment. Take it to a local antique store and ask them their opinion.
How much is a full set of sango china worth?
Ask your Mom.