January 24 Through February 4—TUCSON, ARIZONA: Annual show
Welcome to the GemologyOnline.com Forum
A non-profit Forum for the exchange of gemological ideas
It is currently Thu Mar 28, 2024 11:37 am

All times are UTC - 4 hours




Post new topic Reply to topic  [ 17 posts ]  Go to page 1, 2  Next
Author Message
 Post subject: EBAY - a "Blue spinel" or not?
PostPosted: Sun Dec 25, 2016 11:39 am 
Offline
Gemology Online Veteran
User avatar

Joined: Mon Jun 16, 2014 1:10 pm
Posts: 850
http://www.ebay.com/itm/Natural-Blue-Sp ... 1580346808

Look at the zoning in the middle pic - am I wrong if I say it looks like a Kyanite fom Nepal?

What do you think?

_________________
http://www.gemstore-24.com/
gemstones, precision cuts and more...


Top
 Profile  
Reply with quote  
 Post subject: Re: EBAY - a "Blue spinel" or not?
PostPosted: Sun Dec 25, 2016 12:06 pm 
Offline
Moderator
User avatar

Joined: Mon Apr 02, 2012 9:31 pm
Posts: 4015
Location: North Carolina
Agreed.

_________________
Rough and cut classic and exotic synthetic gems:https://store.turtleshoard.com


Top
 Profile  
Reply with quote  
 Post subject: Re: EBAY - a "Blue spinel" or not?
PostPosted: Sun Dec 25, 2016 12:15 pm 
Offline
Gemology Online Veteran
User avatar

Joined: Tue Jan 31, 2006 12:38 pm
Posts: 894
Location: N.J.
Marlow wrote:
http://www.ebay.com/itm/Natural-Blue-Spinel-Oval-1-34-Carats-Certified-Appraisal-1220-AGI-SP04-/381580346808

Look at the zoning in the middle pic - am I wrong if I say it looks like a Kyanite fom Nepal?

What do you think?
Marlow I have quite a few Kyanites and I agree that stone looks like kyanite. The red flags i see are that the stone is being sold by a New Jersey coin dealer(don't trust people from Jersey) :D . The mini report is made to look like an AGL brief. Even the name AGI sounds like AGL. The 47th st. diamond district is full of scammers especially that building at 37 west 47th. I wish I could buy faceted cobalt spinels for 300 bucks but that ain't happening.

_________________
Nick


Top
 Profile  
Reply with quote  
 Post subject: Re: EBAY - a "Blue spinel" or not?
PostPosted: Sun Dec 25, 2016 12:28 pm 
Offline
Valued Contributor

Joined: Sat Nov 05, 2016 11:29 am
Posts: 142
If you're going to buy that, why don't you pick up his natural Paraiba Tourmaline as well: http://www.ebay.com/itm/Natural-Paraiba ... SwBnVW9VBD
After all, it clearly states replacement value is $5,000, so his $1500 asking price is a great bargain, no?
I just love the "eye clean" and "neon green" statements! Just look at that ugly stone (or not!)!
I'm amazed that this guy has 100% feedback!
Merry Christmas, everyone!


Top
 Profile  
Reply with quote  
 Post subject: Re: EBAY - a "Blue spinel" or not?
PostPosted: Sun Dec 25, 2016 12:57 pm 
Offline
Gemology Online Veteran
User avatar

Joined: Mon Jun 16, 2014 1:10 pm
Posts: 850
:D

Awesome neon Paraiba... :^o :^o

_________________
http://www.gemstore-24.com/
gemstones, precision cuts and more...


Top
 Profile  
Reply with quote  
 Post subject: Re: EBAY - a "Blue spinel" or not?
PostPosted: Sun Dec 25, 2016 1:08 pm 
Offline
Gemology Online Veteran
User avatar

Joined: Mon Jun 16, 2014 1:10 pm
Posts: 850
Nicky Newark wrote:
Marlow wrote:
http://www.ebay.com/itm/Natural-Blue-Spinel-Oval-1-34-Carats-Certified-Appraisal-1220-AGI-SP04-/381580346808

Look at the zoning in the middle pic - am I wrong if I say it looks like a Kyanite fom Nepal?

What do you think?
Marlow I have quite a few Kyanites and I agree that stone looks like kyanite. The red flags i see are that the stone is being sold by a New Jersey coin dealer(don't trust people from Jersey) :D . The mini report is made to look like an AGL brief. Even the name AGI sounds like AGL. The 47th st. diamond district is full of scammers especially that building at 37 west 47th. I wish I could buy faceted cobalt spinels for 300 bucks but that ain't happening.


I have super small Vietnam Cobalts but a very fine Sri Lanka one would be great ( have several good to very good but not the top color)

_________________
http://www.gemstore-24.com/
gemstones, precision cuts and more...


Top
 Profile  
Reply with quote  
 Post subject: Re: EBAY - a "Blue spinel" or not?
PostPosted: Sun Dec 25, 2016 1:33 pm 
Offline
Site Admin
User avatar

Joined: Sun Oct 16, 2005 12:22 pm
Posts: 21602
Location: San Francisco
Yep, sure looks like kyanite to me too.


Top
 Profile  
Reply with quote  
 Post subject: Re: EBAY - a "Blue spinel" or not?
PostPosted: Sun Dec 25, 2016 6:38 pm 
Offline
Gold Member

Joined: Wed Jan 23, 2013 5:29 pm
Posts: 1047
Location: Paris
As the RI of spinel and kyanite are close, and kyanite is not a widely known stone, who knows ? Maybe the "gemologist" who issued the report made a mess of it. #-o


Top
 Profile  
Reply with quote  
 Post subject: Re: EBAY - a "Blue spinel" or not?
PostPosted: Sun Dec 25, 2016 9:52 pm 
Offline
Site Admin
User avatar

Joined: Sun Oct 16, 2005 12:22 pm
Posts: 21602
Location: San Francisco
Very possible, Isi.
But a lab should be able to make the separation.
Who is AGI?
Not familiar.
Accredited by whom?


Top
 Profile  
Reply with quote  
 Post subject: Re: EBAY - a "Blue spinel" or not?
PostPosted: Mon Dec 26, 2016 4:20 am 
Offline
Gemology Online Veteran
User avatar

Joined: Mon Jun 16, 2014 1:10 pm
Posts: 850
http://aginewyork.com/

The homepage of this lab.

Yes - Isi is right - Kyanite has a similar RI like Spinel and only a small birefrigence.

http://www.classicgems.net/gem_kyanite.htm

Sorry but it looks like one ( 1) quick measurement on a refractometer and thats it.

First - a spinel with such a fine color would be a kandidat for a valuable cobalt spinel - so you need to check the spectrum ( natural or synthetic).

Second - a spinel has never these vertical and horizontal stripes
( zoning). They are typical for kyanite like horsetail inclusions in russian or canadian demantoid.

_________________
http://www.gemstore-24.com/
gemstones, precision cuts and more...


Top
 Profile  
Reply with quote  
 Post subject: Re: EBAY - a "Blue spinel" or not?
PostPosted: Tue Dec 27, 2016 2:07 am 
Offline
Gemology Online Veteran
User avatar

Joined: Tue Jan 31, 2006 12:38 pm
Posts: 894
Location: N.J.
Marlow wrote:
http://aginewyork.com/

The homepage of this lab.

Yes - Isi is right - Kyanite has a similar RI like Spinel and only a small birefrigence.

http://www.classicgems.net/gem_kyanite.htm

Sorry but it looks like one ( 1) quick measurement on a refractometer and thats it.

First - a spinel with such a fine color would be a kandidat for a valuable cobalt spinel - so you need to check the spectrum ( natural or synthetic).

Second - a spinel has never these vertical and horizontal stripes
( zoning). They are typical for kyanite like horsetail inclusions in russian or canadian demantoid.

No legitimate gem lab puts an appraisal on their report. That is a beautiful website, but the reality of the street level businesses on 47th street are- slimy hawkers steering bargain hunters to the booths of hundreds of creepy crooks selling diamonds and gemstones. Everything is misrepresented, laser drilled, or just plain phony. The real diamond and gem business on 47th st takes place in secure offices high up in the skyscrapers( far from the general public). That lab is putting on the report just what the seller wants hear. Good way to sell lots of reports, not real good for the buyer.

_________________
Nick


Top
 Profile  
Reply with quote  
 Post subject: Re: EBAY - a "Blue spinel" or not?
PostPosted: Tue Dec 27, 2016 6:45 am 
Offline
Gemology Online Veteran
User avatar

Joined: Mon Jun 16, 2014 1:10 pm
Posts: 850
Yes Nicky, but some customer are very happy with a nice gem report AND an apprasial!!

You know what I mean... :D

_________________
http://www.gemstore-24.com/
gemstones, precision cuts and more...


Top
 Profile  
Reply with quote  
 Post subject: Re: EBAY - a "Blue spinel" or not?
PostPosted: Tue Dec 27, 2016 11:19 am 
Offline
Gemology Online Veteran
User avatar

Joined: Tue Jan 31, 2006 12:38 pm
Posts: 894
Location: N.J.
Marlow wrote:
Yes Nicky, but some customer are very happy with a nice gem report AND an apprasial!!

You know what I mean... :D

I sure do. :D

_________________
Nick


Top
 Profile  
Reply with quote  
 Post subject: Re: EBAY - a "Blue spinel" or not?
PostPosted: Mon Feb 06, 2017 10:37 am 
Offline
Active Member
User avatar

Joined: Tue Jan 31, 2017 12:53 am
Posts: 76
I heard there is a new patented treatment in Bangkok for blue spinel.....in makes a cobalt blue spinel that according my GIA gemologist friend screams unrealistic for a spinel. Anyone heard of this new blue spinel treatment?


Top
 Profile  
Reply with quote  
 Post subject: Re: EBAY - a "Blue spinel" or not?
PostPosted: Mon Feb 06, 2017 10:39 am 
Offline
Active Member
User avatar

Joined: Tue Jan 31, 2017 12:53 am
Posts: 76
Btw, my friend knew because some gemologists were invited to a presentation and she was one of them.


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 17 posts ]  Go to page 1, 2  Next

All times are UTC - 4 hours


Who is online

Users browsing this forum: No registered users and 11 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
Gemology Style ported to phpBB3 by Christian Bullock