Featured Mother of pearl? and small stones - unknown metal ring.

It looks inlaid:

 

That was my first thought, Lucite.

 

Yes, or other plastic/acrylic; there are and were several "pearlescent" types available. The general style does look very similar to some of the Hidalgo examples in an earlier post.
I'd think the curved shape would be unlikely for real pearl.

 

The first image made me think very modern enamel; they do some now that has a swirly effect. The close-ups have me thinking some sort of pearlized lucite too.

 

Tried to get a bit more detail / up close - this is a small ring - I believe approx a size 4 1/2 US (the white pieces are only about 3mm long)- so it's proving quite challenging but here's what I got (if you enlarge the pics you'll see a bit of what I take to be blue iridescence.):

 

it's wild that it fits the given space so perfectly !!!
Close up it's looking less like a shell......

 

In the new photos the ring looks like gold plated copper.

 

Looks modern Indian to me.

 

Impeccable pics! Swirls, swirls.... nacreous particles in manmade stuff and gold plated are now visible

 

Photos are outstanding.

I would have thought fairly new for this. The white material looks synthetic to my eye. From India, Thailand?

Agree that with the new photos you can see some copper showing through. Might be a clue.

4.5 is a ring for a fairly small finger, but would fit on my pinky! It's a pretty ring.

 

It took a while to remember where I had viewed similar material,just had to get the right keyword ........... Kirinite (TM) White MOP

 

I'm back to thinking it's that expoxy/enamel stuff again. The copper is coming through the gold in spots.

 

Thanks everyone for your input and help. I think it does appear to be gold plated and most likely a synthetic MOP - but I'm still going to have the stones tested for fun. I imagine with it being plated they won't end up being diamonds - perhaps just quartz or glass.