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My name is***** am a Personal Property Appraiser and would be happy to assist you with your question.
In excellent condition your Crown Ducal China in the "Her Grace" floral pattern would have a replacement value of 1250-1400USD.
If you were to attempt to resell the set yourself, a fair market or resale value would be closer to 600-750USD assuming all the pieces are in excellent condition.
Any chips, cracks or crazing to the dishes would detract from the resale value of your collectible Crown Ducal China set.
I hope this information was helpful to you today.
Best of luck with your Crown Ducal China set.
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