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gerilicious
I'm Dreaming of a White Sale


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Is it true that if you set a real diamond (flat side down) on a mirror and tip the mirror sideways and it sticks to the mirror, does it really mean that it is real.....or how can you tell if a diamond is real???

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Geri Johnson

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Page Three
Deck the Malls


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Try the list here.
It doesn't list the method you mentioned, and to be honest, I don't see how it could possibly work -- why should a diamond stick to a mirror?

Ultimately, the only way to know for sure is to have a professional do an appraisal.

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magpie
Deck the Malls


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I've never heard that about diamonds before. I've never had a loose one just laying around I could try that with either. But how jewelers judge whether diamonds are real is the same way they determine how any other gem is real, and how much it's worth: by the clarity, color, cut, quality, carat, ect. Not something a layperson could figure out by a simple test.
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GenYus
Away in a Manager's Special


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Rub the diamond against your teeth. If it feels rough, then the diamond is real.

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IIRC, it wasn't the shoe bomber's loud prayers that sparked the takedown by the other passengers; it was that he was trying to light his shoe on fire. Very, very different. Canuckistan

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BeachLife
The Bills of St. Mary's


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quote:
Originally posted by GenYus:
Rub the diamond against your teeth. If it feels rough, then the diamond is real.

A real pearl at least. [Wink]

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Wisdom comes with age, but sometimes age comes alone.
Jack Dragon, On Being a Dragon
Confessions of a Dragon's scribe
Diary of my Heart Surgery

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Seaboe Muffinchucker
Let There Be PCs on Earth


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quote:
Originally posted by GenYus:
Rub the diamond against your teeth. If it feels rough, then the diamond is real.

And if it's smooth, does that mean the diamond is fake or that your teeth are?

Seaboe, whose teeth are.

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Education is not the filling of a hard drive, but the lighting of a bulb. -- Yeats via Esprise Me

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Troberg
Angels Wii Have Heard on High


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The easiest way to test a diamond is to set fire to it. It will burn at around 800 degrees Celcius with a bright flame, fakes don't burn.

Of course, if you are not into it for the knowledge, other tests may be more suitable.

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/Troberg

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Finite Fourier Alchemy
Markdown, the Herald Angels Sing


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Easy, just take it to my x-ray diffractometer and check out the pattern. [Smile]

If you don't work in a materials lab, I think you could use the Archimedes route and at least figure out if it's diamond or cubic zirconia. Diamond has a specific gravity of 3.5 while CZ is way up at 5.6 to 6.0.

The easiest way is to just ask the dealer whether or not the gem is in fact a profoundly overpriced run-of-the-mill stone for which an entire village was macheted to death to ensure its artificial value through supply and price control. If the answer is no, be careful, it might be fake.

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Thinking about New England / missing old Japan

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AliBaba
It Came Upon a Midnight Clearance


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quote:
The easiest way is to just ask the dealer whether or not the gem is in fact a profoundly overpriced run-of-the-mill stone for which an entire village was macheted to death to ensure its artificial value through supply and price control. If the answer is no, be careful, it might be fake.
YOMANK, Finite. Bravo, even.

Ali "Bad News de Beers" Baba

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Eddylizard
We Wish You a Merry Giftmas


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Slightly off topic, but on CSI Miami last night they identified a stolen diamond because a miniature serial number had been etched onto it using a laser. This was supposed to be standard practice for diamonds. Is this for real?

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"Ladies and gentlemen, this is what is commonly known as money. It comes in all sizes, colours, and denominations - like people."

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WonkoTheSane
Happy Holly Days


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'Tis. You can have it done for an extra fee when you buy a diamond from the big box outlets (Zales, etc.). Dunno about it being standard practice, but it is available.

Wonko

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"It seemed to me that any civilization that had so far lost its head as to need to include detailed instructions for use in a package of toothpicks, was no longer a civilzation in which I could live and stay sane."

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DevilBunny
Deck the Malls


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It's a diamond if you can scratch a sapphire or ruby with it.

...you do have a few expendable sapphires and rubies lying about, right?

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"For God has seven thousand names, and one of them is bastard"

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Singing in the Drizzle
Jingle Bell Hock


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When I found a diamond ring in my yard while digging. I just took it with me the next time I went to the shopping mall and stopped by a jewler. They changed me nothing to check the diamonds this one of those electronic testers.

BTW, the large .5 ct center stone was real and the little stones around it were CZ.

Posts: 597 | From: Bellingham, WA | Registered: Nov 2005  |  IP: Logged | Report this post to a moderator
   

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