Here are some simple and beautiful Jain girl names starting with “D” and their meanings:

1. Darshita – One who is seen / blessed vision
2. Dhruvi – Firm, constant, like the Dhruv (pole) star
3. Diksha – Religious initiation, taking a vow
4. Divya – Divine, full of light
5. Disha – Direction, path (can remind of the right path – samyaktva)
6. Devanshi – Part of God, divine soul
7. Dhara – Earth, also steady flow (can signify steadiness in dharma)
8. Damini – Lightning, brightness
9. Drishti – Vision, right view (can be linked to Samyak Darshan)
10. Darshini – One who blesses by her sight, or one who sees (the truth)
11. Dhyana – Meditation, spiritual contemplation
12. Dipika / Deepika – Small lamp, light of knowledge

If you tell me the style you like (very traditional Jain, modern, short names, etc.), I can suggest more names that fit that.