Since 2014, Guramishvili has largely maintained a steady rating just below 2400 while generally playing fewer tournaments. Her biggest tournament during this span was the Women's World Chess Championship, which was played as a 64-player knockout event at the time. She qualified for the world championship tournament twice, in 2015 as the 46th seed and in 2017 as the 45th seed. She had qualified through her performances at the European Individual Women’s Chess Championship in 2013 and 2015 respectively, at which she scored 7/11 and 6½/11. In 2015, she was eliminated in the first round by her compatriot Lela Javakhishvili by losing one of the two games in the second set of tiebreaks, played in a 10+10 rapid format. They had each won one of the two classical games, and both of the 25+10 rapid games in the first set of tiebreaks ended in draws. In 2017, Guramishvili had a much better result, winning two rounds and advancing to the round of 16. All three of her matches were decided on tiebreaks. In the first round, she upset 20th-seed Sarasadat Khademalsharieh, an IM rated 2445. After they each won a classical game, Guramishvili won both of the games in the first set of rapid tiebreaks to advance. In the next round, she faced a lower-rated opponent, 52nd-seed Nataliya Buksa, who had also advanced via an upset. Nonetheless, the match was decided through 5+3 blitz tiebreaks. They each won a classical game and a 10+10 rapid game, having drawn both 25+10 rapid games in-between. In the blitz tiebreak, Guramishvili won the second game to advance. She was eliminated in the following round by 4th-seed Dronavalli Harika, a GM rated 2539. After they had drawn both classical games and both 25+10 rapid games, Dronavalli won the first of the two 10+10 rapid games to advance.