Jill Biden is Radioactive
Modi is too smart and sly not to have done this on purpose. That 7.5ct diamond gets green in a laboratory by exposure to radioactive solution or waves.
However, when it comes to green diamonds, the color is often the result of something peculiar: exposure to radioactive minerals or fluids in nature, or artificial irradiation in a laboratory. Such radiation knocks carbon atoms out of place in the crystal structure, as shown below. This generates vacancies, which are essentially vacant sites where the carbon atoms are absent. The cause of color for many green diamonds is caused by the vacancy defect, also known as the GR1 center in diamond.
https://www.naturaldiamonds.com/diamond-guide/green-diamonds-a-stunning-result-of-natural-irradiation