I See the Diamond But You Only See the Rock
The Occasional Diamond Thief (The Unintentional Adventures of Kia and Agatha, volume 1)
By J. A. McLachlan
From her Goodreads entry:
J. A. McLachlan is the author of a short story collection, CONNECTIONS (Pandora Press) and two College texts on Professional Ethics (Pearson-Prentice Hall). But science fiction is her first love, a genre she's been reading all her life. Walls of Wind was her first published SF novel. She has two young adult science fiction novels, The Occasional Diamond Thief and The Salarian Desert Game (EDGE SF&F Publishing).
2015’s The Occasional Diamond Thief is the first book in J. A. McLachlan’s The Unintentional Adventures of Kia and Agatha series.
Her father’s death after a long illness gives Akhié Ugiagbe the chance to escape her hostile family. Adopting a new name—Kia—she reinvents herself as a linguistics student far from home.
Of course, her family didn’t see fit to provide for her continuing education. Kia has to do that herself, with one little jewel theft that she assumes will have no repercussions for her future. Ha!