Conversation with some fellow bead artist/photographers suggested that maybe the light tent was not my best option so I decided to compare yesterdays photo (no light tent) with one using the light tent on the same piece. When I didn't use the light tent, I also had not diffusers on my lights and can see the images of the three lights reflected on the pearls.
I thought perhaps the light tent would diffuse the two big lights enough to make them disappear and the front 'sparkler' light would have more impact.
I did notice that using the same f-stop resulted in a darker picture. I didn't yet bother to go full manual and increase the shutter speed. I am sure as time goes by I will get more familiar with how to best utilize this camera's (Canon Power Shot G16) features. But I remain pretty happy with the level of detail, color and white balance (on auto).