A tent and dome kit is a great way to get professional quality images of jewelry. See:
http://www.bhphotovideo.com/c/buy/Te...9/N/4294550800
I hope that you got the 100mm macro or something with a long focal length to give you a decent working distance to your jewelry subjects.
For interior shots, I"m not clear if that's an objective, try using natural daylight, including early in the day or late, if that's what it takes to get the best light. You've got a very good camera, but interior shooting really demands a wide angle lens, like 17mm or wider on your crop-sensor camera.
Dave