Generally speaking, hand-painted teacups with matching saucers are usually those with the highest value. The value of antique tea cups can vary as much as the number of colorful patterns they come in. The age, rarity, and condition of antique tea cups directly affect their value.
Teacups are often marked on the bottom with a stamp and accompanied by letters and/or numbers. These markings typically indicate the manufacturer and sometimes the pattern name, too. Visiting other antique shops or searching for the manufacturer or pattern name often help you to find similar tea cups with these same markings and their current selling prices.