掘(ほ)り出(だ)し物(もの)

ほりだしもの
noun
bargain; lucky find; treasure
1. bargain; lucky find; unexpected treasure
A valuable item found at a surprisingly low price, or something unexpectedly good discovered among ordinary things. Often used when shopping at flea markets, thrift stores, or used goods shops.
フリーマーケットで掘(ほ)り出(だ)し物(もの)を見(み)つけた。
I found a bargain at the flea market.
この花瓶(かびん)は掘(ほ)り出(だ)し物(もの)だった。100円(えん)で買(か)ったのに本物(ほんもの)だ。
This vase was a real find. I bought it for 100 yen, and it's the real thing.
If you visit secondhand shops, you can sometimes come across real bargains.

Literally "a dug-out thing" — like digging up buried treasure. The word conveys the excitement of finding something valuable that others overlooked.

Common collocations

Often used at: フリーマーケット (flea markets), 骨董(こっとう)市(いち) (antique fairs), 古本(ふるほん)市(いち) (used book fairs), リサイクルショップ (thrift shops).