Looking a lot like a basic stock shot, rather than an advertisement, though advertising companies use stock photos for their advertising. (did any of that make sense?? _ LOL)
Overall focus is a little soft.
We are allowed 640 pixels on the longest side, and up to 150K. Using as much of the 150K as possible will only help to not compress the image. If you need help in understanding or making these happen, please don't hesitate to PM me and I can give you some pointers. (5)
This is a nice shot of a ring, but I would have liked it better on a black background. The white background doesn't give enough contrast to the white gold. Just my opinion...
Very nice. High key does seem to be the way to shoot jewelery. The low keys just don't seem to work. I like the color sat in the stone Maybe just a tad deeper dof to include the outside bits of the face of the ring 9
I think I would have tried to bump up the saturation and get a little more glow about the green. This is very nicely done, overall, with the usual problematic blurring of the diamonds. It also feels very static, which is not bad, just a point of consideration. 8
Seems you were working with a very shallow DOF; there's an area around the ring that looks out of focus. Also, ligthing was maybe too direct. The sparkle of most of the diamonds is too intense and wash out the diamonds details.
such a hard challenge in many ways. Sadly this is much too flatly lit to be considered for print and the sharpness is lacking. Lighting from the side or a little behind (even with a battery operated flashlight) would help add some texture
I love the simple, and static composition and the white background.
I don't really know what green jade ought to look like. Here it posesses a beautiful color, but the reflections are so controlled that I cannot see that it is shiny or transluscent. There is an analogous problem, it seems with the diamonds. Finally, I'm having a bit of a hard time telling which parts of the ring are actually in crisp focus.
I would sugest that for such a big stone the front on view does not do the ring justice. A black or dark background would also set it off well. My 2c worth.