Hi:
This is a battle I am fighting too. I just bought a tripod, three of the 30W trumpet top bulbs from TableTopStudio and built a light box this weekend.
Light box helped a lot, but I think a huge factor is using the tripod and setting a longer exposure time. I also tinkered with manually setting my white balance using the back of the light box.
Some things are looking a little over exposed so I don’t have all the answers, but I hope this helps.
Cheers,
Robbin