The quality of shining brightly.

A soft glow or sheen.

चमक

English Usage: The lustre of the polished surface was mesmerizing.

Hindi Usage: चमकीली सतह की चमक मंत्रमुग्ध कर देने वाली थी।

Radiance or brilliance.

दीप्ति

English Usage: Her eyes had a lustre that conveyed her happiness.

Hindi Usage: उसकी आँखों में दीप्ति थी जो उसकी खुशी को दर्शाती थी।