I used the Nikon Coolpix 995
Well to be honest I did not go for normal light photography. What I had in mind was to grossly underexpose the picture to get the flower to give the glowing effect. I used the spot meter facility and the exposure was 3-4 stops under to render the image the way it is.
I could have taken the shot in the normal way but it would not have the appeal since the flower is made of crystal and it is not very appealing to look at or to take picture of. I took about 6-7 shots by the window and used a black cloth for background. The shutter speed was 1/30 and aperture f4.1. Using the larger aperture instead of smaller also helped in sort of diffused light, a smaller aperture would not have done justice as it would have rendered the image to be very sharp.
There are many ways to shoot, this is just my own experimentation with what was available.