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Mystery Green Stones
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Author:  Katy B [ Thu Jan 25, 2018 2:09 pm ]
Post subject:  Mystery Green Stones

An interesting Art Deco bracelet came across my desk today. The bracelet is apparently set with early modern round brilliant cut diamonds and a mix of green glass and green mystery stones. The mystery stones are very strange when viewed under magnification - showing a wild "crazed" appearance, a dark green core and colorless edge.

I am just curious if anyone else has seen these green "gems" before. My best guess after a little bit of research is that they could potentially be synthetic Lechleitner Coated Beryl OR Richard Nacken's Synthetic Emeralds produced in the 1920's.

Thank you,
Katy B
[attachment=2]Deco Bracelet.jpg[/attachment]
[attachment=1]Mystery Stone.jpg[/attachment]
[attachment=0]Glass and Mystery Stone.jpg[/attachment]

Attachments:
Glass and Mystery Stone.jpg
Glass and Mystery Stone.jpg [ 97.92 KiB | Viewed 796 times ]
Mystery Stone.jpg
Mystery Stone.jpg [ 97.97 KiB | Viewed 796 times ]
Deco Bracelet.jpg
Deco Bracelet.jpg [ 62.32 KiB | Viewed 796 times ]

Author:  mowgli2001 [ Sat Jan 27, 2018 2:21 pm ]
Post subject:  Re: Mystery Green Stones

can't really see much in the image. What I do see looks like glue to me.

Author:  steinfroilein [ Sun Jan 28, 2018 4:19 am ]
Post subject:  Re: Mystery Green Stones

Maybe Emerald Soudee .... or Smaryll .... ?
Lannyte-Emerald would be from a later time.

It was very usual to set Diamonds in combination with Emerald Soudee.

Author:  Barbra Voltaire [ Sun Jan 28, 2018 11:47 am ]
Post subject:  Re: Mystery Green Stones

When you say "early round brilliants" are you seeing old European cuts or transitional cuts?
What is the metal?

Author:  Katy B [ Sun Jan 28, 2018 3:04 pm ]
Post subject:  Re: Mystery Green Stones

Thank you for the feedback!
The bracelet is platinum. Yes, the diamonds are transitional cuts. Sometimes it seems that the name "transitional" is synonymous with "early modern round brilliants" from what I have heard.
Best wishes,
Katy B

Author:  Barbra Voltaire [ Sun Jan 28, 2018 11:57 pm ]
Post subject:  Re: Mystery Green Stones

Hi Katy.
I'd put my money on glass.
Not uncommon.

Author:  roshanravan [ Mon Jan 29, 2018 8:44 am ]
Post subject:  Re: Mystery Green Stones

Katy B wrote:
...The bracelet is apparently set with early modern round brilliant cut diamonds and a mix of green glass and green mystery stones...

it means you identify green glass and another mystery stone? what gave the conclusion its glass?

as for mystery stone (or even those glass you identified) search for glass ceramics or Nano Crystal on this forum and Internet, they are suitable to cut in small sizes and have nice uniform color.

Author:  Isi [ Tue Jan 30, 2018 9:58 am ]
Post subject:  Re: Mystery Green Stones

Why not simply emeralds ?
Beacuse they are glued ?

Author:  Katy B [ Tue Jan 30, 2018 9:44 pm ]
Post subject:  Re: Mystery Green Stones

Hi, Farshid -

I believed that some of the green stones (the bright green, perfect looking ones) were glass due to the large number of gas bubbles and their overall appearance/luster.

After receiving some great feedback from the group - I have concluded that the other green stones (the ones that look like they are crazed or deteriorated) to be doublets of some sort. My descriptive term will most likely be -
emerald simulant, doublet and/or "emerald Soudee" as Steinfroilein mentioned :) .

Thank you,
Katy B

Author:  roshanravan [ Wed Jan 31, 2018 7:57 pm ]
Post subject:  Re: Mystery Green Stones

Hi Katy 8)
well doublets in those sizes are odd. if you can post some better pictures

Author:  Isi [ Thu Feb 01, 2018 8:16 am ]
Post subject:  Re: Mystery Green Stones

I don't believe in doublets either. Nor in synthetic emeralds.
I would say either glass or plain natural emeralds. Why not emeralds ? The bracelet is in platinum.
The piece would need to be seen by someone in person.

Author:  Stephen Challener [ Thu Feb 01, 2018 10:51 am ]
Post subject:  Re: Mystery Green Stones

That layer of crazing around a clean core is very odd. It seems like it should be very diagnostic.

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