Jaqueline, I know you're in a hurry, so I'm sending this to you
off-list as well as an Orchid post.
I've experience laser welding a wide variety of work, including
plenty of prong retipping and replacement in immediate proximity of
many colored stones, including emeralds, opal, "mystic" topaz,
aquamarine, corundum, etc.. I've repaired cable and anchor chains as
small as 1mm while keeping the chain fully articulated (no
soldered-together links resulting in a "hard spot"). I've been
successful with white & yellow gold, platinum and sterling silver for
jewelry applications, titanium for eyeglasses and even reshaped a
customer's copied car key by welding it with stainless steel, then
filing to a shape closer to the original.
If you can't find a local Orchidian to help you, the only way I can
would be for you to overnight the ring to me on Saturday or Monday,
and I will overnight or express mail it back, insured, the same day
it arrives here.
If you need my services, please feel free to contact me off-list via
email and/or call me at work tomorrow (Saturday)(954)-763-8279.
10:00am to 5:00pm EST
James S. Duncan, G.G.
James in SoFL