1
even a woman of low birth can gain status by marrying rich (if she has the looks)
1
palanquin set with jewels
2
money and social status gained by marrying a rich and powerful man
See also:
玉の輿に乗る (たまのこしにのる)
Other forms
玉のこし 【たまのこし】 (search-only kanji form)