PDA

View Full Version : How to of the day. 1/21/08



hermhater
01-21-2008, 09:37 PM
How to Tell if a Diamond is Real (http://www.wikihow.com/Tell-if-a-Diamond-is-Real)

http://www.chiefscrowd.com/forums/images/imported/2008/01/158.jpg

http://www.chiefscrowd.com/forums/images/imported/2008/01/230.jpg (http://www.wikihow.com/Image:Diamond_536.jpg)
Whether you're buying that perfect gift for a special person in your life or you want to know if your own diamond is the real thing, the proliferation of imitation stones and the people who try to pass them off as real can be worrisome. While the best option is to have the diamond appraised by a jeweler you trust, who can test the diamond without damaging it, this will cost you, and it may not be convenient if you're shopping around. Here's how to take matters into your own hands and catch a fraud on the spot. [edit (http://www.wikihow.com/index.php?title=Tell-if-a-Diamond-is-Real&action=edit&section=1)] Steps


Ask for a certificate. Make sure it's from an impartial diamond grading authority (e.g. Gemological Institute of America, Jewellers Association of Australia)[1] (http://www.wikihow.com/Tell-if-a-Diamond-is-Real#_note-0) or an independent appraiser who is affiliated with a professional organization (like the American Society of Appraisers). This is especially important if you're buying a stone you haven't seen, such as from the Internet.
Look through it. Diamonds have a high "refractive index" (meaning they sharply bend the light that passes through them). Glass and quartz have a lower refractive index, meaning they sparkle less because they bend light less, even when they've been cut nicely (because the refractive index is an inherent chemical property [2] (http://www.wikihow.com/Tell-if-a-Diamond-is-Real#_note-1) which is not altered in any way by a nice cut - unless, technically speaking, the cut induced a permanent strain on the crystalline lattice).
If the diamond is not mounted, turn it upside down and place it on a piece of newspaper. If you can read the print through the stone or even see distorted black smudges, then it probably isn't a diamond.[3] (http://www.wikihow.com/Tell-if-a-Diamond-is-Real#_note-2)
If the stone shows any sign of double refraction, it may be Moissanite (silicon carbide), a gemstone that is so similar to a diamond that even jewelers can have a hard time telling them apart.[4] (http://www.wikihow.com/Tell-if-a-Diamond-is-Real#_note-3)
If the diamond is mounted, you should not be able to see the bottom of a diamond looking directly from the top.[5] (http://www.wikihow.com/Tell-if-a-Diamond-is-Real#_note-4)
Observe the reflections. A real diamond's reflections usually manifest in various shades of gray. If you see rainbow reflections, you're either dealing with a low-quality diamond or a fake.[6] (http://www.wikihow.com/Tell-if-a-Diamond-is-Real#_note-5)
Take the side view. Most imitation diamonds are crafted to sparkle at the top, but check to see how it sparkles and reflects from a side angle. A real diamond will be just as reflective all around, whereas a fake is more likely to be duller when seen from the side.[7] (http://www.wikihow.com/Tell-if-a-Diamond-is-Real#_note-6)
Fog it up. Put the stone close to your mouth and breathe on it. If the stone stays "foggy" for 2-4 seconds, then it is definitely not real. Real diamonds will have cleared by the time you look at them. Be warned though - some jewelers cap cubic zirconia bases with real diamond which will, of course, clear.[8] (http://www.wikihow.com/Tell-if-a-Diamond-is-Real#_note-7)
Weigh the stone. cubic zirconia weighs approximately 55% more than diamonds for the same shape and size.[9] (http://www.wikihow.com/Tell-if-a-Diamond-is-Real#_note-8) Use a carat or gram scale to compare the stone in question to a real diamond.
Check the setting and mount. A real diamond is not likely to be set in a cheap metal.[10] (http://www.wikihow.com/Tell-if-a-Diamond-is-Real#_note-9) Stamps inside the setting indicating real gold or platinum (10K, 14K, 18K, 585, 750, 900, 950, PT, Plat) are a good sign, while a "C.Z." stamp will give away that the center stone is not a real diamond.[11] (http://www.wikihow.com/Tell-if-a-Diamond-is-Real#_note-10)
Put the stone under a UV light. Many (but not all) diamonds will exhibit blue fluorescence under an ultra violet or black light, so the presence of a medium to strong blue confirms that it is real. The absence of blue, however, does not mean it is fake; it could simply be a better quality diamond.[12] (http://www.wikihow.com/Tell-if-a-Diamond-is-Real#_note-11) If you see a very slight green, yellow, or gray fluorescence under ultraviolet light, it may be Moissanite.[13] (http://www.wikihow.com/Tell-if-a-Diamond-is-Real#_note-12)
Rub the diamond on corundum sandpaper. If you see scratches or it is nicked, then it is not a real diamond (diamonds are harder than sapphire, which is the same stuff as corundum). Keep in mind, however, that some types of sandpaper have diamond in them, and that can ruin a diamond.


[edit (http://www.wikihow.com/index.php?title=Tell-if-a-Diamond-is-Real&action=edit&section=2)] Tips


If you take the stone for an independent appraisal, expect to pay between $35 and $75 in the US, and make sure the stone never leaves your sight.[14] (http://www.wikihow.com/Tell-if-a-Diamond-is-Real#_note-13)
Diamonds do scratch glass, but so do many imitation stones.[15] (http://www.wikihow.com/Tell-if-a-Diamond-is-Real#_note-14)


[edit (http://www.wikihow.com/index.php?title=Tell-if-a-Diamond-is-Real&action=edit&section=3)] Warnings


Some diamonds are lab-created or synthetic, but they are still "real". They cost a fraction of what a mined diamond costs, but they are (for the most part) chemically the same as "natural" diamonds. Telling the difference between a natural and a synthetic diamond is beyond the scope of this article and is best determined by a professional.
There is no way to be 100% sure that a diamond is real unless there is a certificate. If you buy a pawned item, something off a table at a market, or an item off of a website, you are taking a risk.
DO NOT hit your diamond with a hammer! A popular myth states that, because it is so hard, you can hit a real diamond with a hammer and it will not break. This is FALSE. A diamond, when hit with a hammer, will shatter just as easily as a crystal or other stone, albeit much more expensively.http://www.wikihow.com/Tell-if-a-Diamond-is-Real

rbedgood
01-21-2008, 09:44 PM
How to Tell if a Diamond is Real (http://www.wikihow.com/Tell-if-a-Diamond-is-Real)

http://www.chiefscrowd.com/forums/images/imported/2008/01/158.jpg

http://www.chiefscrowd.com/forums/images/imported/2008/01/230.jpg (http://www.wikihow.com/Image:Diamond_536.jpg)
Whether you're buying that perfect gift for a special person in your life or you want to know if your own diamond is the real thing, the proliferation of imitation stones and the people who try to pass them off as real can be worrisome. While the best option is to have the diamond appraised by a jeweler you trust, who can test the diamond without damaging it, this will cost you, and it may not be convenient if you're shopping around. Here's how to take matters into your own hands and catch a fraud on the spot. [edit (http://www.wikihow.com/index.php?title=Tell-if-a-Diamond-is-Real&action=edit&section=1)] Steps

Ask for a certificate. Make sure it's from an impartial diamond grading authority (e.g. Gemological Institute of America, Jewellers Association of Australia)[1] (http://www.wikihow.com/Tell-if-a-Diamond-is-Real#_note-0) or an independent appraiser who is affiliated with a professional organization (like the American Society of Appraisers). This is especially important if you're buying a stone you haven't seen, such as from the Internet.
Look through it. Diamonds have a high "refractive index" (meaning they sharply bend the light that passes through them). Glass and quartz have a lower refractive index, meaning they sparkle less because they bend light less, even when they've been cut nicely (because the refractive index is an inherent chemical property [2] (http://www.wikihow.com/Tell-if-a-Diamond-is-Real#_note-1) which is not altered in any way by a nice cut - unless, technically speaking, the cut induced a permanent strain on the crystalline lattice).
If the diamond is not mounted, turn it upside down and place it on a piece of newspaper. If you can read the print through the stone or even see distorted black smudges, then it probably isn't a diamond.[3] (http://www.wikihow.com/Tell-if-a-Diamond-is-Real#_note-2)
If the stone shows any sign of double refraction, it may be Moissanite (silicon carbide), a gemstone that is so similar to a diamond that even jewelers can have a hard time telling them apart.[4] (http://www.wikihow.com/Tell-if-a-Diamond-is-Real#_note-3)
If the diamond is mounted, you should not be able to see the bottom of a diamond looking directly from the top.[5] (http://www.wikihow.com/Tell-if-a-Diamond-is-Real#_note-4)
Observe the reflections. A real diamond's reflections usually manifest in various shades of gray. If you see rainbow reflections, you're either dealing with a low-quality diamond or a fake.[6] (http://www.wikihow.com/Tell-if-a-Diamond-is-Real#_note-5)
Take the side view. Most imitation diamonds are crafted to sparkle at the top, but check to see how it sparkles and reflects from a side angle. A real diamond will be just as reflective all around, whereas a fake is more likely to be duller when seen from the side.[7] (http://www.wikihow.com/Tell-if-a-Diamond-is-Real#_note-6)
Fog it up. Put the stone close to your mouth and breathe on it. If the stone stays "foggy" for 2-4 seconds, then it is definitely not real. Real diamonds will have cleared by the time you look at them. Be warned though - some jewelers cap cubic zirconia bases with real diamond which will, of course, clear.[8] (http://www.wikihow.com/Tell-if-a-Diamond-is-Real#_note-7)
Weigh the stone. cubic zirconia weighs approximately 55% more than diamonds for the same shape and size.[9] (http://www.wikihow.com/Tell-if-a-Diamond-is-Real#_note-8) Use a carat or gram scale to compare the stone in question to a real diamond.
Check the setting and mount. A real diamond is not likely to be set in a cheap metal.[10] (http://www.wikihow.com/Tell-if-a-Diamond-is-Real#_note-9) Stamps inside the setting indicating real gold or platinum (10K, 14K, 18K, 585, 750, 900, 950, PT, Plat) are a good sign, while a "C.Z." stamp will give away that the center stone is not a real diamond.[11] (http://www.wikihow.com/Tell-if-a-Diamond-is-Real#_note-10)
Put the stone under a UV light. Many (but not all) diamonds will exhibit blue fluorescence under an ultra violet or black light, so the presence of a medium to strong blue confirms that it is real. The absence of blue, however, does not mean it is fake; it could simply be a better quality diamond.[12] (http://www.wikihow.com/Tell-if-a-Diamond-is-Real#_note-11) If you see a very slight green, yellow, or gray fluorescence under ultraviolet light, it may be Moissanite.[13] (http://www.wikihow.com/Tell-if-a-Diamond-is-Real#_note-12)
Rub the diamond on corundum sandpaper. If you see scratches or it is nicked, then it is not a real diamond (diamonds are harder than sapphire, which is the same stuff as corundum). Keep in mind, however, that some types of sandpaper have diamond in them, and that can ruin a diamond.

[edit (http://www.wikihow.com/index.php?title=Tell-if-a-Diamond-is-Real&action=edit&section=2)] Tips

If you take the stone for an independent appraisal, expect to pay between $35 and $75 in the US, and make sure the stone never leaves your sight.[14] (http://www.wikihow.com/Tell-if-a-Diamond-is-Real#_note-13)
Diamonds do scratch glass, but so do many imitation stones.[15] (http://www.wikihow.com/Tell-if-a-Diamond-is-Real#_note-14)

[edit (http://www.wikihow.com/index.php?title=Tell-if-a-Diamond-is-Real&action=edit&section=3)] Warnings

Some diamonds are lab-created or synthetic, but they are still "real". They cost a fraction of what a mined diamond costs, but they are (for the most part) chemically the same as "natural" diamonds. Telling the difference between a natural and a synthetic diamond is beyond the scope of this article and is best determined by a professional.
There is no way to be 100% sure that a diamond is real unless there is a certificate. If you buy a pawned item, something off a table at a market, or an item off of a website, you are taking a risk.
DO NOT hit your diamond with a hammer! A popular myth states that, because it is so hard, you can hit a real diamond with a hammer and it will not break. This is FALSE. A diamond, when hit with a hammer, will shatter just as easily as a crystal or other stone, albeit much more expensively.http://www.wikihow.com/Tell-if-a-Diamond-is-Real

Hmmm...been diamond shopping HH??? :lol: :lol:

tammietailgator
01-21-2008, 09:50 PM
Hey, here is another option

http://www.lifegem.com

hermhater
01-21-2008, 09:50 PM
Hmmm...been diamond shopping HH??? :lol: :lol:

You never know what lies around the corner...

:D

hermhater
01-21-2008, 09:52 PM
Hey, here is another option

http://www.lifegem.com

I'm not sure whether to be touched or freaked out!!!

:scared2:

rbedgood
01-21-2008, 10:17 PM
I'm not sure whether to be touched or freaked out!!!

:scared2:


Dude, so when I tell my wife, "You're a gem..." this could have a whole new meaning...:yahoo:

hermhater
01-21-2008, 10:25 PM
Dude, so when I tell my wife, "You're a gem..." this could have a whole new meaning...:yahoo:

Man, you are one sick puppy!

http://www.chiefscrowd.com/forums/images/imported/2008/01/234.jpg

:lol:

rbedgood
01-21-2008, 10:27 PM
Man, you are one sick puppy!

http://www.chiefscrowd.com/forums/images/imported/2008/01/234.jpg

:lol:

Yeah...but you're still the runt of the litter...

hermhater
01-21-2008, 10:30 PM
Yeah...but you're still the runt of the litter...

You're just asking for the bird, eh?

:D

rbedgood
01-21-2008, 10:36 PM
You're just asking for the bird, eh?

:D

Quit your chirpin'

hermhater
01-21-2008, 10:40 PM
Quit your chirpin'

:lol:

:bananen_smilies046:

tornadospotter
01-21-2008, 11:33 PM
I'm not sure whether to be touched or freaked out!!!

:scared2:
I'm changing my will. I now want to be transformed into a jewell, so that I will have a value when I die.

tammietailgator
01-21-2008, 11:55 PM
I'm changing my will. I now want to be transformed into a jewell, so that I will have a value when I die.
I think it is a very clever idea. I want to be several diamonds - if I die sooner than later, my husband can make me into his future wifes wedding ring. :biggrin:

rbedgood
01-21-2008, 11:56 PM
I think it is a very clever idea. I want to be several diamonds - if I die sooner than later, my husband can make me into his future wifes wedding ring. :biggrin:

That's almost as creepy as McLovin's post a couple days ago...

tammietailgator
01-21-2008, 11:58 PM
No - that was much more creepy (mclovin's post) - I am just thinking of saving my husband some $$

:)

tornadospotter
01-22-2008, 12:09 AM
No - that was much more creepy (mclovin's post) - I am just thinking of saving my husband some $$

:)
Yea right, your thinking you have hime now, but I am still here, on you finger. :D

tornadospotter
01-22-2008, 12:12 AM
That's almost as creepy as McLovin's post a couple days ago...
I missed that one, can you refer it, or do I have to search.

hermhater
01-22-2008, 12:15 AM
No - that was much more creepy (mclovin's post) - I am just thinking of saving my husband some $$

:)

Sure you are....

:lol:

rbedgood
01-22-2008, 12:29 AM
I missed that one, can you refer it, or do I have to search.

http://www.chiefscrowd.com/forums/showpost.php?p=64514&postcount=39


http://www.chiefscrowd.com/forums/images/imported/2008/01/238.jpg

tammietailgator
01-22-2008, 01:41 AM
:pointlaugh: haha!!!

Chiefster
01-22-2008, 03:21 AM
Article's too long for me to bother reading; just thought I'd let ya know. :p :D

hermhater
01-22-2008, 03:46 AM
Article's too long for me to bother reading; just thought I'd let ya know. :p :D


I know that...

It is longer than the instructions on a bottle of Metamucil so I figured I was safe!

(j/k)

rbedgood
01-22-2008, 03:51 AM
:pointlaugh: haha!!!

Tammie...seeing as you had the 2nd creepiest post in the last week or so, you might want to tone down the laughing.

Chiefster
01-22-2008, 04:05 AM
I know that...

It is longer than the instructions on a bottle of Metamucil so I figured I was safe!

(j/k)

:lol::lol::lol:

Get off my lawn :sign0104:!




Nite Crowd! :D

tammietailgator
01-23-2008, 02:14 AM
that makes me laugh even more... just the fact you thought my post was that creepy!!! It was a joke!

:biggrin:

rbedgood
01-27-2008, 05:16 PM
that makes me laugh even more... just the fact you thought my post was that creepy!!! It was a joke!

:biggrin:

I would hope it was a joke...but it was a sick joke...:D