They will give her the ring itself, but it will (probably - again I'm not expert on CA common law statutes) go against her share of the marital assets, so you aren't really losing financially.
Don't worry about the lack of contact after the D, as the D is 6 months away. You don't know what will happen. I still think something is missing if there is no OM, some traumatic life event, or some really serious incident in your M that caused her to run like h*ll. Not that it would likely matter, but it doesn't add up.
Hang in there. All you can do is GAL, stop any and all pursuit, and see what happens. It changed on a dime. Read what you want into that in terms of what could happen in the future. If it changes again, you'll have a lot of work figuring out what happened, how to address that, and whether you can hitch your wagon back to that M after this.
Me: 50 W:43 S6, S3 M: 12 yrs. T: 17 M is bad & Not happy Bomb Mar '14 S 5 Feb '15 D Bomb 13 Apr '15 (but "no hurry") DB Coach May '15 Wants proceed on D Aug '15 Starting 1-on-1 negotiations Sept '15