What is known about the 30-carat emerald over which Kareena was served legal notice?

Kareena Kapoor was served a legal notice for wearing a pendant bearing a Quran verse. The 30-carat emerald once belonged to the Begum of Bhopal. It was carved with the Ayat-ul-Kursi, the 255th verse of Surah Al-Baqarah, which forms part of the second chapter of the Holy Quran. A Congress spokesperson objected to it being used as a fashion accessory.