jeweled palanquin
Literal historical meaning: a palanquin decorated with jewels. Rarely used outside of explaining the idiom.
Originally, 'tama no koshi' referred to a beautiful palanquin used by nobles.
marrying into wealth and status
Idiomatic use: gaining money and social standing by marrying a rich or powerful man. Often used in the phrase 玉の輿に乗る.
See also: 玉の輿に乗る
She married into wealth and became the wife of a multimillionaire.
Some people go to matchmaking parties aiming to marry rich.