Okay I couldn't help myself and had to check.
There are only two 1997 girls with WTA doubles rankings at the moment:
#843 Francoise Abanda (CAN) 5/2/97 - Like Lizette, she also made the SF of a $25K
#1138 Arina Folts (UZV) 1/1/97
Lizette is much younger then them with a DOB of 19/12/97. Olivia Tjandramulia is also younger than both girls who are already ranked with a DOB of 11/5/97.