expression, noun
fruit of one's labor; result of one's efforts
Used to express that a positive outcome is the direct result of hard work. Often appears in formal or appreciative contexts.
この成功は努力の賜物です。
This success is the fruit of our hard work.
彼の優勝は日々の努力の賜物だ。
His victory is the result of his daily efforts.
Similar meaning, but 結晶 (crystallization) emphasizes the culmination of effort into a tangible result, while 賜物 (gift/blessing) carries a nuance of a reward bestowed.
Compound of 努力 (effort) + の (possessive particle) + 賜物 (gift, result). 賜物 originally means a gift from a superior, and by extension, a result that seems bestowed as a reward for one's efforts.