Police believe burglars broke into the museum in West Hill, Wandsworth, on July 29 after climbing a ladder and getting in through a first floor toilet window.
Six plates and a vase - valued at £200,000 - were taken during the break in.
Another plate was smashed into pieces and a vase damaged after the burglars broke a glass display cabinet holding the antiques.
A £15,000 reward was offered for information leading to the return of the ceramics.
The recovered art works were all William de Morgan pieces, some comprising unique pieces of art.
This included a red and gold lustre dish of a snake wrapped around the body of a winged dragon; a red and gold lustre dish with three peacocks; and a two handled lustre urn with snakes and cherubs playing musical instruments.
The ceramics were found in south London on Friday.
Police say no arrests have been made and inquiries are continuing.
Detective Sergeant Vernon Rapley of the Met's Art and Antiques Unit, said: "We are really pleased to have been able to return these beautiful objects in time for Christmas.
"We have been assured by the De Morgan Centre that they will be put back on display so that public can once again enjoy them."