Post subject: Help! Please tell me what kind of stone I have
Posted: Tue Oct 31, 2017 7:31 pm
New to the Forum or The Quiet Type
Joined: Tue Oct 31, 2017 3:31 pm Posts: 4
Hello, I buy gold and silver in the DFW area and come across many types of gemstones set in gold, platinum, etc.. I hope I am not out of line by asking questions regarding my findings....and hope to use this thread/blog to gain knowledge and information on an ongoing basis on the various natural stones I find. I'm not looking for dollar values (unless that is not out of bounds then I will certainly welcome that information), but simply hoping that the expertise of the participants will be able to educate me on the type of stones I publish. Thanks so much!
This being said, I have a ring with a purple stone set in 14k gold. It is approx. 15mm across and approx 8mm deep. Not sure if this is an amethyst or some type of topaz? I would love any information you have on determining the difference in the two, along with any information you could pass along on this particular stone. Thank you.
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Post subject: Re: Help! Please tell me what kind of stone I have
Posted: Tue Oct 31, 2017 11:53 pm
New to the Forum or The Quiet Type
Joined: Tue Oct 31, 2017 3:31 pm Posts: 4
Thanks for your reply. Could it be an amethyst? The only thing I have to test stones is a diamond tester. If it's a CZ, the tester will not move. I like checking other stones with this device because if its a natural stone the sensor will slowly climb the ladder....where as a diamond will run quickly up the scale and beep. When I test this stone it actually moves rather quickly up the ladder....just not exactly sure what it is.
Post subject: Re: Help! Please tell me what kind of stone I have
Posted: Wed Nov 01, 2017 5:01 pm
Gold Member
Joined: Mon May 26, 2014 9:42 pm Posts: 1031
incredibly hard to tell from a picture. Basically I would guess:(and it is ONLY a guess) 1) CZ (yes, I have seen CZ exactly this color.) If CZ, it will sparkle a lot more than amethyst, and probably have a lot of different color flashes 2) Amethyst (Is there any evidence of color banding?) 3) Glass (Hold it to your lip - is it cold or warm? if warm, it is glass)
But ... you can always by Hanneman's book (on the left panel - Identifying Gems w/o Instruments) and try his methods. Or you can have someone that knows how to id stones look at it.
Post subject: Re: Help! Please tell me what kind of stone I have
Posted: Wed Nov 01, 2017 10:32 pm
Site Admin
Joined: Sun Oct 16, 2005 12:22 pm Posts: 21600 Location: San Francisco
Also there is a possibility that it may be vanadium doped synthetic sapphire. Take it outside and shoot another picture...see if the color shifts to a more bluish tone.
Post subject: Re: Help! Please tell me what kind of stone I have
Posted: Thu Nov 02, 2017 5:51 am
Site Admin
Joined: Fri May 12, 2006 11:24 am Posts: 7523 Location: Rome, Italy
Barbra Voltaire wrote:
Also there is a possibility that it may be vanadium doped synthetic sapphire. Take it outside and shoot another picture...see if the color shifts to a more bluish tone.
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