This Heliopolitan goddess was the female counterpart of the male solar-creator principle personified by Atum1. Her headdress is a complex modius of uraei surmounted by a scarab1. This is an extremely rare amulet2

Iusaas - Green glazed striding
Iusaas - Green glazed striding

Green glazed striding
H 5.7 Late Period
Art market

References

1Hart G. The Routledge dictionary of Egyptian gods and goddesses, 2nd Edition, 2005. Routledge, Taylor & Francis Group, New York, p. 83
2None, Unpublished amulet