King Boudewijn gave his wife, queen Fabiola, a jewellery set consisting of earrings, a bracelet and a necklace when they travelled through Tunesia.
The jewels contain diamonds, rubies and green cabochon cut gemstones. These green stones could be emeralds, tanzanites, tourmalines or agates.
In 2015 she wore a matching bracelet during a state visit to Poland.
It does seem to be a different one from Fabiola's.