Although these suppliers don't match your search for Jewellery in London, they are within approximately 40 miles and could still be of interest.
Wedding rings & jewellery, Jewellery, Chelmsford, Essex
For almost 25 years, Lido have been sourcing beautiful pearls to use in their extensive range that features earrings, necklaces, pendants, rings and brooches. (Jewellery in London)