Featured Ring stone/age help

Hi folks

found this ring in out local charity shop today for a pound

was a bit bent out of shape, but fixed it with a ring mandrel

cant work out what the stone is, thought was turquoise, but it is semi transparent

two small hallmarks on the back outside, top one is a three pointed crown i think

hoping its got a bit of age as well

any thoughts info appreciated

 

Possibly Amazonite .... https://geology.com/gemstones/amazonite/

 

thanks holly, that does look to be a possibility

 

That's what I was thinking too. There are other candidates, but there are probably more. Microcline, the technicla name, comes in blues and greens and blue-green.

 

(technical - fumble-brain strikes again)

 

Ya thinks it's 30s evey, with the marcasites ?

 

30s, or 80s, or 90s, or.....? Hard to be sure, but I think it's later. The marks might give the game away if it has some.

 

Your not usually wrong evey, eveytime , was hoping deco

 

It has some Deco style to it, but Deco came around again in the 80s. A 30s ring would be jade (if gold and $$$) or chrysoprase (in either silver or gold).

 

Just cool to know ya, and I mean that

 

Looks proper Art Deco to me, and either amazonite or amazonite glass.
The Czechs (of course) made beautiful amazonite glass.

 

Concur with AJ!
Amazonite, I don't see glass simulant here

 

The open back probably means real amazonite anyway, although I'm never certain with that Czech faux amazonite.
Amazonite was one of those Art Deco stones. Looked great with Deco favourite onyx, just like jade did.

 

I never saw it used in old settings here, but I'm willing to learn. The ring doesn't "smell" that old to me, but as noted above.... (I think I sold a Neiger necklace about 15 years ago without knowing it was a Name, so knowing everything isn't one of my problems!)

 

Awesome, thanks Aj and kyra