The verse states (24:22):
ויקח האיש נזם זהב בקע משקלו ושני צמידים על ידיה עשרה זהב משקלם
the man took a golden nose ring, weighing half [a shekel], and two bracelets for her hands, weighing ten gold [shekels].
What, if any, is the significance of these particular gifts and their weights?