Gold brooch with carnelian and diamonds

The lower part of the brooch is gold, in the shape of a wave or ellipse. In the middle, a round horizontal bar made of polished and ground carnelian. Inserted, on the sides, in a gold round mount. On the left side, a gold crown with two set diamonds of a modern brilliant cut. In the back, a safety gold cap with a needle. Gold with a purity of Au 585 / 1000. Total weight 8.70 grams. Marked: Dutch hallmark ( lion's head with tongue, letter R ) , fineness 585, date letter - E., master mark J. W.. Gouda, The Netherlands, year 1989. Width 8 cm.