Anything intersting here

I recently bought these pieces. I think they are not that old and not vintage enough but ask for your expert opinion. is there anything interesting?

1)large clip erarings with glass?

2) green earrings


3) gitarlike brooche

4) brutalist broche

5 ) Liz claiborne broche



Thanks for looking

 

Liz Claiborne.

 

thanks . I have corrected

 

I like the brutalist piece.
The little glass mosaic guitar brooch is very plain, they usually have a lot more going on in the designs. Actually looking again I don’t think it is a guitar.

 

https://www.rubylane.com/item/645543-KC-09583/c1950s-Italian-Micro-Mosaic-Red-White

 

It really is strikingly plain. Here are others in that mandolin shape.

 

its a very small thing less than 2,5 cm appr 1inch tall.

 

yes i agree with you

 

I like the green earrings. Are they glass?
The brutalist brooch is nice, any silver marks? I like the style of the Liz Claiborne brooch too. Good haul @Hi2022

 

I think it's glass. I did the toothtest described in one of the previous posts but I'm not sure... it could also be some kind of plastic that looks like glass.

I can't find any markings. I tested this brooch on silver and gold, but again..... I'm not sure what to make of the test results.

The scratches will dissolve within 10-15 sec. on if I use 18 kr solution. at 14kr solution they lose a little slower but certainly within 1 minute it is solved. At 10 kr nothing happens. scratches remain visible. and I scratched a lot

based on these test results i think it should be between 10 -14 kr gold.. but the color is too reddish to be 10-14 kr right ? and there must be a gold marking right? ..

maybe my test stone is not clean enough ..
how do you clean your test stone if you don't have a special cleaning solution?

I clean mine by using a few drops of 22k solution and or platinum solution

 

This is my take on it. I am very amateurish at testing so no doubt someone more experienced will be along to help.
Wear gloves and eye protection.
When testing silver using the amber colour (nitric) acid you are looking for a colour change.
The red colour indicates silver, the brighter the red, the higher the fineness. The top one in the photo below is silver, the others aren’t. If it’s brown then it’s low fineness. You need good light to see the red.



You can also use 18k gold acid to test silver.
It does this if it’s silver. It only works with 18k acid.


Gold is tested by seeing if the sample stripe disappears.
If it disappears with 9K acid then it’s lower carat than that or not any gold at all.
If it disappears with 14k acid then it’s less than that etc etc.
Don’t get hoodwinked by aluminium (presume that’s what it is) as it won’t disappear when you put the acid on.
Heavy plating will test as gold or silver so if in doubt get a jeweller to check for you. Having said that I’m always worried they will damage my jewellery so I rarely do!

 

ty for your help i really apreciate it .

how long do you wait to conclude whether its 10, 14 or 18 kt gold? In mine test 14kr dissolved very slovely .
And in your example of 18kt test. I see the scratches Clearly. when i tested that etnisch bracelet i saw the line fade into such a white color substantie. Is the bracelet silver or not silver?

 

If it’s like the photo I posted I would think it sounds like the bracelet is silver.
I don’t know how long you should leave it before it becomes invalid. As suggested above I think you should test a few known items of varying carat to see what reaction you get.
With gold testing I look at the reaction I get within a few seconds. If it’s still there 30 secs or a minute later you are probably good to go.
Disclaimer that I am a total amateur and it may be that it should be left longer.
I watched lots of YouTube videos!

 

Be careful using 18k acid to test for silver, especially for non-jewelry items. You can get the milky white result if something is heavily plated.

There is a secondary test I sometimes do, which I learned from the guy I used to scrap silver to. Be aware this will likely damage the piece if it is not silver. Rub the piece on a testing stone, then dip the rubbed spot in a drop of 14K acid. If it discolors to a grayish color which you you can then polish back to silver, leaving no trace of the gray, it is silver. If you get tiny bubbles, sometimes with green, or if you can not polish the spot out, it is not silver. You may need magnification to see the bubbling.

I've experimented with this with known pieces of silver and silver plate. I have found pieces of silver plated flatware that pass the 18K test but fail the 14K test. I don't recall ever finding a piece of jewelry that passes 18k but fails 14k.

I have tested pieces which I think are rhodium plated, and sometimes find I can not quite polish the 14k testing spot back to the original shine, but I think this is because the acid has eaten through the rhodium, so the spot is not as shiny as the rest of the piece. This is just my guess about it and it may not be accurate.