What kind of stone could this be?

[nala]

 

[Bron357]

Aquamarine is my guess.

 

[dk168]

My guess is an Aqua too, and in the colour that I like which is a pale blue-green.

DK

 

[nala]

Aquamarine is my guess.

How can I rule out glass?

 

[dk168]

How can I rule out glass?

Refractive Index using a refractometer perhaps?

DK

 

[nala]

Refractive Index using a refractometer perhaps?

DK

With only a loupe? Lol

 

[Roselina]

Aquamarine or topaz

 

[LD]

With only a loupe? Lol

You can’t unfortunately.

 

[LilAlex]

Well just ask Santa. He's right there and he ain't gonna lie.

 

[LilAlex]

Do you know is it 10K or 14K? If it's not 14K, all bets are off. Most seem like they were 10K.

 

[Bron357]

This is when a Presidum gem tester can help.
It can identify if glass or if Beryl or if Topaz. If Topaz the Presidum can’t say if lab grown or treated but at least rules out glass.

 

[nala]

Do you know is it 10K or 14K? If it's not 14K, all bets are off. Most seem like they were 10K.

14k

 

[Lisa Loves Shiny]

My guess is leaded glass. Very pretty piece.

 

[Polyhex]

Does it have color zoning or is this a trick of the light?

 

[nala]

Might be the gold bar bc it’s a pin

 

[Daisys and Diamonds]

Its really pretry
What are you going to do with it ?
Wear it as is ?
Or a conversion?
Or will it depend if its real or not ?

 

[Mrs_Strizzle]

It also could be synthetic spinel too, right?

 

[nala]

Its really pretry
What are you going to do with it ?
Wear it as is ?
Or a conversion?
Or will it depend if its real or not ?

I want to make it a pendant if I do buy it.

 

[arkieb1]

Synthetic blue spinel, glass or aquamarine.

 

[arkieb1]

It also could be synthetic spinel too, right?

Yes that would be one of my first guesses.