(Kadamba Kanana Swami, 13 September 2013, Durban, South Africa, Radhastami Lecture)
The beauty of Srimati Radharani is the topmost beauty but it is not ordinary beauty or merely external beauty. That beauty is a reflection of her love for Krsna.
In the Caitanya Caritamrta, there is a section of verses which describe how Srimati Radharani is preparing to meet Krsna and how she takes her bath. It is said that her first bath is the bath of mercy or compassion. Srimati Radharani is so compassionate that she would take any small offering of a devotee to Krsna, and how can Krsna refuse her request? So this compassion, this mercy, is her first predominant feature.
She takes her second bath in youthfulness. So, she is eternally youthful and granted a spiritual body and therefore not subjected to age or time or any such influences as we are.
Then, at noon, she takes bath again and this time it is by effulgence – effulgence and bodily luster. Then she covers that with a black sari of shyness.
So in this way, we find some descriptions about the beauty of Srimati Radharani relating to her consciousness. And basically, she has all the qualities to attract Krsna, all the qualities of pure devotional service, and that manifests also in her physical appearance simultaneously, because she is not limited like we are.