Jewellery worth over £100,000 with “major sentimental value” was stolen from a house in Wimbledon Village last month.
Merton police have appealed for information after a house in Church Road was burgled at between 7.30am and 10pm on Monday, October 8.
The items taken included a diamond-encrusted Cartier watch worth £35,000 and a Cartier platinum diamond ring with two yellow diamonds, worth £70,000.
Other items stolen include watches, bracelets and rings worth up to £7,000 each, several of which are also by Cartier.
Both the watches have 'Squirrels Wood' engraved on the back of them.
Detective Constable Debbie Goff said: "We need to hear from anyone with information about the burglary or the stolen jewellery, which is of major sentimental value to its owner."
Anyone with information should call 020 8649 3118; or anonymously to the charity Crimestoppers on 0800 555111.