Archaeologists say it is a mystery why the buried Bronze Age valuables were never recovered by their owners.
The money will go towards safety improvements as well as new play equipment, like swings and seesaws.
The jewellery was discovered at a construction site on the Black Isle.
The winners of the 2021 awards for images of wildlife and landscapes are announced.
Highland Threads is a new virtual exhibition and includes items said to have been worn by Bonnie Prince Charlie.
Her body was found by members of the public at Fortrose in the Black Isle a month ago.
The plea includes a request for help in tracing a woman seen in the area in the days before the body was found.