Hello !

I am taking many shots in a ( proper) softbox. I am using a 23W white coated lightbulb 2 either side of the box. I was capturing some pearl resently and I realized a strange hue ( cyan) around a reflection caused by a lightsource. The sample picture show well what I am talking about. I don't mind a white "spot" as a reflected shine but I don't know why I am getting a cyan tone as well. Makes no different if a light is closer or away a bit from a side wall of the box. Also make no different if I use different white ballance on my canon 400d. No other light use while I am taking a photo.
Please if you know what cause this effect help me identify it....Thank you

seeya Tunde