"Blend of Gabri- and -ana"
The name Gabriana is commonly a female name from the "English" origin.
Gabriana is a modern formation that joins the Gabri- element of Gabrielle and Gabriella with the -ana ending found in names such as Juliana and Mariana. It does not appear in United States birth records before 1993, which fits a twentieth-century coinage rather than an inherited name.
The pronunciation of Gabriana is gab-ree-AH-nuh.