Tiffany & Co. coffee cup from their "Everyday Objects" collection, which is made of bone china in the signature Tiffany Blue color.  The cup is designed to look like a disposable paper cup but is made of bone china. 
 
Selling on Ebay for $145
It has a 10-ounce capacity
3.7 inches high and 3.5 inches in diameter. 
The cup is dishwasher safe but not microwave safe.