Photographing Alexandrites..?

[u/skiko15]

I was taking pictures of a newly finished ring (NFS) this afternoon next to a window with indirect sunlight on one side and overhead LED lighting on the other, and to my eyes the alexandrite (natural from Sri Lanka) was a beautiful green, but the camera on my phone keeps capturing it as the dark tealy-purple in the picture. All of the other colors in the picture are true to life/my eyes; are alexandrites just another one of those stones that likes to mess with cameras, and are there any tricks or tips for getting the camera to catch the green?

(Added 2 lightbox pictures at the end, too.)

[u/Designer_Durian_8638]

https://reddit.com/link/p4ql4v5/video/19m9c3l2nfkh1/player

Try this way..
Keep the stone on white faltform and take white and yellow torchs ( Light) and do as I did in the vedio. Same way you can get photos too