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Offline GoldDigger1950Topic starter
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« on: June 30, 2011, 06:33:06 am »
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Inexpensive but impressive machine for use in testing diamond.

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http://www.dealextreme.com/p/diamond-gemstone-tester-selector-tool-black-1-x-9v-battery-66101


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« Last Edit: June 30, 2011, 04:54:07 pm by GoldDigger1950 » 		Logged
It's all about that moment when metal that hasn't seen the light of day for generations frees itself from the soil and presents itself to me.
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« Reply #1 on: June 30, 2011, 07:19:10 am »
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The link did not work, but I found it going back to the home page. Did a google search to see a review and only ones positive. But a warning on one site about fake/knock off ones. See

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here
 for info. Also I did also see ebay and suntekstores had them cheaper. But at least one appeared fake according to the site I mentioned.  About $15 including shipping. It may only do diamonds, but at least you don't have to buy the liquid for testing.

Posted on: June 30, 2011, 07:03:10 AM
I was think about getting one. And still doing some searches. Sounds like the real one is made in Japan and the fake is from China. But it still says made in Japan. Also sounds like you need a moissanite tester also to make a positive id.

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« Last Edit: June 30, 2011, 07:25:51 am by ghola » 		Logged
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« Reply #2 on: June 30, 2011, 04:25:31 pm »
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hi that is helpful but how to order.what technology they are using ? i see no adj or control knobs. at least a battery level?

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« Reply #3 on: June 30, 2011, 04:54:52 pm »
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It uses thermal conductivity. But according to the site I listed above it is a Chinese knock off not the original.

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Offline GoldDigger1950Topic starter
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« Reply #4 on: June 30, 2011, 04:55:22 pm »
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Quote:Posted by ghola
The link did not work

Fixed it. Thanks for noticing.

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It's all about that moment when metal that hasn't seen the light of day for generations frees itself from the soil and presents itself to me.
Let's Talk Treasure!
Offline BitburgAggie_7377
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« Reply #5 on: June 30, 2011, 05:03:16 pm »
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Quote:Posted by ghola
according to the site I listed above it is a Chinese knock off not the original


China, the new Japan  Wink


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Offline bsloan
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« Reply #6 on: July 03, 2011, 08:23:11 am »
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My wife bought a diamond tester from Jewelry Television a few years ago, it worked great. I can't remember how much it cost at the time, but since I'm kind of cheap, it couldn't have cost too much.

jtv.com

Hope it helps,
Bill

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Offline kabier2
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« Reply #7 on: July 03, 2011, 04:06:10 pm »
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hay man every single thing here is made in china
but how thermal conductivity here its hot all year round
what the theory of this thermal conductivity
i have many kinds of stones am sort of collecting stones from deep wells and the river bank
if i can get hold or can build such a tester it will be nice
i dont have a video camery then i can post these stones
thanks for the topic


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« Reply #8 on: July 03, 2011, 04:46:12 pm »
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It checks the thermal conductivity of the stone. You would really need to check the information on one you buy. One of the sites I visited said something about an adjustment on one of them.
If you are checking a bunch of different types of gemstones you may need a gem refractometer. But probably the cheapest and maybe even easiest is to find out what stones are in your area and either get a I.D. book on them or find some one local who can help you I.D.'ing them. It's really tough to make an true positive I.D. from a picture.

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Offline kabier2
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« Reply #9 on: July 03, 2011, 05:00:03 pm »
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hi thanks and i have showed some of stones to the gem faculty at the university and they say quarts and topaz. and sometimes is use the scratch method to see the hardness but still am some away to id
thanks

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