The glamorous Dynasty actress, 87, auctioned several valuable items from her collection at Bonhams in London on Thursday with some of the proceeds going to The Shooting Star Children’s Hospice charity.
The top priced lot from Joan’s trove of jewels was a Van Cleef & Arpels diamond brooch dating from about 1930 that sold for $161,000 (£122,750) – eight times its pre-sale estimate of $19,730-$26,300 (£15,000-£20,000).
It fetched more than a 60.5-carat diamond necklace that Dame Joan bought in 1985 when she was starring as Alexis Carrington Colby in Dynasty, which sold for $90,750 (£69,000) – at the top end of its estimated price.
In a press release announcing the sale, Joan said: “The fabulous thing about jewellery is how extraordinary it makes you feel – these pieces of jewellery have brought me so much joy over the years and I felt it was time for others to experience this.
“I am also delighted to support The Shooting Star Children’s Hospice through part of the proceeds of the lots the charity is vitally important, and it is an honour to be able to support it.”
Other items the actress sold off included a pair of pendant earrings, which sold for $19,730 (£15,000), a collar, which went for $13,150 (£10,000), and a pair of ruby and diamond pendant earrings costing $9,210 (£7,000).