I'm confused. Also are you asking for help with photoshop (cause there really aren't any more members that do that) or do you want a vendor recommendation as to who would be best to make that for you.
OK please correct me if I'm wrong but you wanted that emerald with the gold surround (its called a bezel ) added to that baguette halo as well as the ring with the baguette sides sans halo?
I had to do it with my phone, so forgive the quality... Also, it was easier just to use a ring with baguette alone than remove the halo....
What's your budget for this endeavor? A precision cut asscher and a baguette halo is champagne taste....
Also, here it is without he yellow gold.
And you may want to move this over to the colored stone side, you can do that by hitting report concern and asking the mods to move it.
Heck, you'd be lucky to even get a custom cutter who is able to find the right emerald rough to cut an octagonal emerald because the rough has to be deep and blocky because most emerald rough is elongated and thin (pencil-shaped).