
Marcella Zalianty is for sure a native, but I'm not sure of which ethnicity..

Meisya Siregar is Batak (North Sumatera)

Anggun Cipta Sasmi is Javanese..

Davina Veronica Hariadi is Javanese-Menadoese (Java-North Celebes)

Angelina Karamoy is Menadoese (North Celebes)

Annisa Tribanowati is Javanese

Donna Agnesia Wayong is Menadoese (North Celebes)

Sabina Guseynova Padmovati is actually from Uzbekistan - Central Asia, but she recently married the younger brother of President Megawati, Guruh Sukarnoputra and had adopted Indonesian citizenship.. So she is ethnically Uzbek, but technically Indonesian
Btw, what's with your fascination with racial or ethnical purity?