Hi Sasha @SashaGarrett. I only used the flash gun - without diffusers, as we only got them 3 days ago - so I don’t think my photos will be of any use to you (there’s only 3 items at the moment taken with the new flash I could point to anyway as I’m still wading through processing the new shots).
Keith has had a look at your photos - which are great by the way - and can tell you use natural light, so we get what you mean about having a consistent set-up that you can use when you need to rather than waiting for the weather. In your case, using a basic white background that you can place your jewellery and props on, with a light source either side will give you the consistent look you’re after whenever you need it, even at night.
The kit Keith reviewed is a little expensive (remember our main audience are commercial businesses) but you can get some really decent kit on eBay that will do the job. You can get a complete kit like this:
(if this is a bit cumbersome, see what is consists of and have a hunt around for something smaller)
Or buy a couple of continuous light sources/soft boxes - find them on eBay here:http://www.ebay.co.uk/sch/Lighting-Kits/19591/i.html?_pgn=2&_skc=50&rt=nc&Bundled%20Items=Softbox%28es%29
… and then buy a sheet of plastic and some heavy duty clips and attach them to a flat surface to create a backdrop. Although I use flash, I do use a plastic sheet for my backdrop so if you go back to the review of the flash gun and scroll down you’ll see my set up - and the way I use the plastic. Ignore the flash gun on the camera - you’ll just need to set up a continuous light source/soft box either side and your camera in front.
Whichever option you choose - buying the soft boxes and a sheet of plastic will be cheaper - you will need to experiment with the intensity of the light - but they should have adjustments on them - and their position, but once you’ve got that sorted, it’s just a case of the same thing every time.
By the way - you may need to do some local research for the plastic. The best way to describe it is a sheet of white translucent flexible plastic. Keith just walked into a local plastics (for building) suppliers told them that he needed it as a photography backdrop and this is what they gave us. A commercial training client in Yorkshire bought his online - but it was enormous! - by walking in off the street, Keith was able to buy an off-cut for about £10.00.
Hope this is of some help to you - and anyone else that reads it - let me know if you/anyone has any questions.