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oldmancoyote
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« Reply #125 on: July 25, 2008, 04:45:09 AM »
I tested the stone in the setting. On the other hand, I also tested the refractometer with a couple of diamonds in their setting (one a 1.13 ct EC and another about 0.6 ct RB), and it was coming up with 2.41 / 2.42 against an official value of 2.417, so I think the light beam is tight enough for that size of stone. Moving the stone about, you could see that near the edges the RI reading was going down to 1.1-1.2, which was probably the setting interfering with the measurement.

I'll call B today and see what they tell me (not much, I suspect). Will keep you posted.
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Mikla
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« Reply #126 on: July 25, 2008, 05:02:55 AM »
Dear OMC -

That's pretty cool!  Do you mind me asking how much a good refractometer goes for?

Mikla
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Trinkette
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« Reply #127 on: July 25, 2008, 08:15:55 AM »
The Mystery of the Green Stone continues...
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Cockneysparrow
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« Reply #128 on: July 25, 2008, 01:39:18 PM »
Quote from: oldmancoyote on July 25, 2008, 04:45:09 AM
I tested the stone in the setting. On the other hand, I also tested the refractometer with a couple of diamonds in their setting (one a 1.13 ct EC and another about 0.6 ct RB), and it was coming up with 2.41 / 2.42 against an official value of 2.417, so I think the light beam is tight enough for that size of stone. Moving the stone about, you could see that near the edges the RI reading was going down to 1.1-1.2, which was probably the setting interfering with the measurement.

I'll call B today and see what they tell me (not much, I suspect). Will keep you posted.

Hope the call goes well.  I'd love to hear what you finally discover.
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oldmancoyote
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« Reply #129 on: July 25, 2008, 02:01:26 PM »
Hellish day at work. Not even the time for a 5 minute call. Will try tomorrow.

Mikla: I paid about $350 for a four-digit digital unit (RI range 1.3 - 3); they are available on ebay or the net from Gem Lab Tools (mods - they don't sell gems, only gemmology equipment). An analogue instrument costs about one third of that, but it may be fiddly to use
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Cockneysparrow
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« Reply #130 on: July 25, 2008, 02:34:37 PM »
I ordered one from them a while ago and it never turned up - seller gave excuse after excuse and finally I had to take drastic action to get my money back (hope I'm allowed to say that).  Glad you got yours though.  Sounds like the seller may have ironed out his problems.
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oldmancoyote
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« Reply #131 on: July 25, 2008, 02:52:14 PM »
Glad to report no problems with them. Unit was shipped from Thailand one working day after payment, with a tracking number. It reached Milan in 10 days in excellent conditions.
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Cockneysparrow
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« Reply #132 on: July 25, 2008, 03:00:50 PM »
That's good - they've obviously sorted out their supply problems.   Smiley
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Cockneysparrow
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« Reply #133 on: August 04, 2008, 06:13:39 PM »
Any news on the gemstone OMC?
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Mikla
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« Reply #134 on: August 04, 2008, 08:24:16 PM »
My husband would go nuts over this kind of stuff. He's an engineer and he'd be testing all my stones and giving me the details on everything!  Perhaps I shouldn't share this with him - some stones might all of a sudden suspiciously fall out of their mountings for further scientific study!   Grin

Mikla
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oldmancoyote
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« Reply #135 on: August 05, 2008, 11:21:02 AM »
I spoke to a very kind lady who suggested I post them some pictures. I am now awaiting their response to that...
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Cockneysparrow
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« Reply #136 on: August 05, 2008, 06:20:29 PM »
Quote from: oldmancoyote on August 05, 2008, 11:21:02 AM
I spoke to a very kind lady who suggested I post them some pictures. I am now awaiting their response to that...

Interesting to hear what they say.  Good luck. I hope you get the reply you want. x
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Trinkette
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« Reply #137 on: August 11, 2008, 01:09:02 PM »
 Whistle  (I'm not sure whether were waiting here for something or not.  But, I figure if I post my little whistling fellow, something is BOUND to happen... OMC has all sorts of goodies stashed here and there, I just know it!)
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oldmancoyote
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« Reply #138 on: August 11, 2008, 02:19:28 PM »
sorry to disappoint, T, but no goodies. And no goodies forthcoming from B either; just a kind acknowledgement they got the pictures and forwarded them to the appropriate department. Now, bearing in mind this is August and that is France, I suspect the appropriate department is currently tanning en masse on the Côte d'Azur.
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« Reply #139 on: August 11, 2008, 02:24:02 PM »
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Now, bearing in mind this is August and that is France, I suspect the appropriate department is currently tanning en masse on the Côte d'Azur.

Hahahaha! I'd say you're RIGHT about that one, OMC, for sure! No problem.  I'll just wait patiently because I know that SOMEDAY you will have SOMETHING to add to the den, and I'm going to be SO excited to see it... whatever "it" is! BTW, I know the bracelet is still calling you...

 Whistle
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oldmancoyote
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« Reply #140 on: August 26, 2008, 12:14:31 PM »
OK, I got a reply from B...

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Dear Sir,

We thank you for your message and for your interest in B[...].

We are pleased to inform you that the model of the ring is "Concorde" made in April 1976.

The model n°51924 was bought April 2nd, 1979. It is yellow gold with 69 diamonds for 2,20 carats, however the central stone has been changed. The stone in the photograph does not appear in our original archives and the modification was not registered in our documents. We hope this information is of use to you, we remain at your disposal should you have further queries.

Right-o. So we aren't any closer to the solution. Do you think they'll tell me what was in there?  Huh?

Well, at least I bought an authentic... mix.
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Trinkette
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« Reply #141 on: August 26, 2008, 12:38:15 PM »
 tard Phooey.  I'm sorry OMC, all your efforts to reconcile the mystry and STILL no answers! What a disappointing non-ending!
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« Reply #142 on: September 05, 2008, 07:34:47 PM »
Oh OMC I'm sorry that they haven't given you a definitive answer.  Mind you, at least you know that it isn't the original gemstone so is unlikely to be Chrysoberyl.  Just a thought but did you buy the ring in 1979 from B?  Is it possible that it was bought from them and then traded back in after switching the central stone? 

If you did buy it from B, is it possible that as they've admitted the central stone is different to their archived photo/records, could you send them the ring for testing at their expense?

I do hope you get to the bottom of this.
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« Reply #143 on: September 06, 2008, 12:10:40 AM »
How bizarre. How bizarre.
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oldmancoyote
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« Reply #144 on: September 06, 2008, 07:34:38 AM »
Unfortunately I bought the ring (in 2008) from an antiques dealer. One of two things is likely:

a. The original stone was broken/chipped, and it was replaced by the original owner
b. The original stone was quite valuable on its own and it was sold separately (possibly still by the original owner)

I have written back to B, asking if they could let me know what the original stone was, since I'd like to restore the ring to its original status. So far, no reply. We shall see...

I haven't paid an unfair price for the piece (even accounting for a peridot instead of anything else), but this is an interesting turn of events
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Trinkette
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« Reply #145 on: October 02, 2008, 05:10:43 PM »
*SIGH* We could be here awhile.  Whistle
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oldmancoyote
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« Reply #146 on: October 02, 2008, 05:21:05 PM »
We could... still no reply. I will send a reminder tomorrow.
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« Reply #147 on: October 02, 2008, 05:27:29 PM »
Perhaps they all went back to the beach...
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oldmancoyote
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« Reply #148 on: October 02, 2008, 06:04:31 PM »
Or they went bankrupt. It seems fashionable nowadays...
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« Reply #149 on: October 02, 2008, 06:11:26 PM »
Oh, yes, bankruptcy is terribly du jour. Roll Eyes
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