Although ordinarily I like beige, a creamy white, (ivory) lampshade would be the perfect choice, in my opinion. Is there some other lampshade that comes in that color that you could buy? Is the only choice between pure white and beige?

If not, I would suggest going with the white one. Although ordinarily, beige would coordinate more closely with the colors of your wall and furniture, I think you should get the color you like and are accustomed to.

If you don't like the beige now, you will never like it. Also, the white one may let more light through and I think TNB has a good point. The white one will brighten the room.
2/c and some 3A. Modified CG.
Protein sensitive
Highly porous. Color over grey.
Best 1st day method: Super Soaker
Conditioners: Curl Junkie Beauticurls Strengthening Conditioner,
Deep condish: Curl Junkie Curl Rehab
Stylers: Experimenting with cones & sulfates while the dews are high.
Sometimes try roller sets - classic glamor but I prefer my curls.
Every day is a gift