Fellows Auctioneers is holding its biggest annual jewellery sale, which will include nine items with a total high estimate of £547,000.
The Antique & Modern Jewellery auction features several items by British jewellers Graff Diamonds and will take place in Birmingham on November 8.
Stephen Whittaker, managing director at Fellows Auctioneers, said: “We are delighted to offer for sale such high quality jewellery in our flagship auction.
“This time last year we sold a yellow diamond ring from Graff for £1.3m which broke our record at the time. This is the single largest private collection of jewellery we have had the privilege of offering for a number of years. We anticipate it will attract both national and international interest.”
The sale also includes a diamond fringe necklace with a total diamond weight of 75 to 80cts which has a high estimate of £150,000.