"The catalogue described it as "An important brooch in sapphires and diamonds in the form of twin hearts, each with a large inverted pear shaped sapphire as a centre within two row pave set diamond borders, and with a large pears shaped diamond in a drop. Diamond set fitting. The brooch is adapted for wear as a Bracelet with the fitting accompanying this lot."
The Times 1 December 1961 reported that "An anonymous purchaser gave £9,800 for a diamond and sapphire brooch in the form of twin hearts"
Deborah, Duchess of Devonshire wearing the jewel as a brooch.
Many thanks Maridje for the superb photos and the information.