The duo of Semenistaya and Kazakhstan tennis player Zhibeka Kulambaeva, seeded third in the tournament, beat Lu Jiajin from China and Anita Wagner from Bosnia and Herzegovina in the final 6-2, 6-2.
Semenistaja earned 50 world doubles ranking points for winning the competition.
Only two victories were needed to reach the final, as the opponents of the second round or quarter-final did not take the court.
In the semi-finals, the German Katarina Hobgarska and the Italian Angelica Moratelli, who had the second number in the tournament, were beaten 6-4, 7-5.
In the singles competition, Semenistaja, the third racket of the tournament, stopped in the second round.