This is a lovely little pair of stud earrings, which are made of 9 carat gold and are set with beautiful, faceted pale aquamarines.
The stones are 6mm x 4mm. The sides of setting around them have decorative engravings of irregular wavey lines.
The butterflies are stamped 375 for 9 carat, and the stems of the earrings are fully hallmarked. The stamps, however, are too tiny for me to be able to make out any details other than the number 375 (see photo).
These earrings have never been worn and are in mint condition.