Is it a diamond?
Discussion
SpydieNut said:
would it be too sensible to suggest taking it to a jeweller?
Listen, I might ask advice on PH but I'm I bloke; we don't ask for help/advice/directions to someones face!!If it is a diamond - result. If not......plonker, taking a bit of glass into a jewllers! The shame.....
If the stone is not in a ring take a piece of paper and draw a line on it. Place the diamond over the line and look through it with a magnifying glass. If it is a real diamond the line will be broken up something like this /--I\/ etc. If you can still see a straight line it ain't real.
Scratching a piece of glass doesn't mean it's a diamond you can scratch a piece of glass with quartz.
Scratching a piece of glass doesn't mean it's a diamond you can scratch a piece of glass with quartz.
T40ORA said:
Buster Bakdorzin said:
Is there a ring attached to the diamond? 
If yes, the CZ stamped inside the ring indicates cubic zirconia...
spotted it glinting in the sun on my driveIf yes, the CZ stamped inside the ring indicates cubic zirconia...
What does it smell like?
Lick it.
Or put it inside an apple.
Apples float because they are made of wood.
If the apple burns, you are a witch.
And because the diamond found YOU, its a familiar.
Ergo, you should be able to cast spells which will turn bovril into gold.
sleep envy said:
lord summerisle said:
sleep envy said:
give it a solid whack with a hammer, if it smashes it's paste
diamonds are the hardest thing known to man
ahh... but while diamonds are hard... they will shatter when hit like that diamonds are the hardest thing known to man
just ask Mizzy
Diamonds: How to tell CZ from Diamond
Diamond simulants like CZ may be suitable for costume jewelry, and the average person in casual circumstances may not know the difference between a sim and a natural diamond. However, no professional will be fooled and laymen who would like to know the difference between diamond and CZ can try these fun and easy tests:
The Huff Test
Hold the stone in question next to a diamond and "huff" on them with your hot breath. Both stones will fog up. The diamond will clear up rapidly, while a CZ will take a little longer. This is due to diamond's greater thermal conductivity.
The Flash Test
When a CZ is upside down and backlit (light coming through the crown, viewed from the pavilion side) its pavilion facets will often "flash" orange.
The Weight Test
CZ is 80% heavier than diamond. Hint: This will show up pretty fast when she's comparing items with her friends.
The RI Water Test
Put the CZ a glass of water, along with a diamond. A CZ (with a 2.2 refractive index versus diamond's 2.42) will appear more "transparent" than a diamond. It will look more "washed out", or "ghostlike" compared to a diamond.
The Dispersion Water Test
In a dark room, put the stone in question in the bottom of a glass alongside a diamond, face down. Lift the glass up a couple inches, and shine a flashlight down on them vertically from above. Diamond has a dispersion of 0.44, while CZ's is 0.66, 50% more. You will see a circular pattern of light images under the stones which has been "streched out" into a rainbow spectrum. If one of the stones is a CZ, it's rainbow spectrum will be 50% longer, more "stretched out" than a diamond. The difference in look is obvious.
The Give It As An Engagament Ring Test
Give the stone in question to your fiancee as an engagement ring. If she throws it back in your face within 24 hours, it is a CZ... This is the most decisive test of all of them.
so there you go
Diamond simulants like CZ may be suitable for costume jewelry, and the average person in casual circumstances may not know the difference between a sim and a natural diamond. However, no professional will be fooled and laymen who would like to know the difference between diamond and CZ can try these fun and easy tests:
The Huff Test
Hold the stone in question next to a diamond and "huff" on them with your hot breath. Both stones will fog up. The diamond will clear up rapidly, while a CZ will take a little longer. This is due to diamond's greater thermal conductivity.
The Flash Test
When a CZ is upside down and backlit (light coming through the crown, viewed from the pavilion side) its pavilion facets will often "flash" orange.
The Weight Test
CZ is 80% heavier than diamond. Hint: This will show up pretty fast when she's comparing items with her friends.
The RI Water Test
Put the CZ a glass of water, along with a diamond. A CZ (with a 2.2 refractive index versus diamond's 2.42) will appear more "transparent" than a diamond. It will look more "washed out", or "ghostlike" compared to a diamond.
The Dispersion Water Test
In a dark room, put the stone in question in the bottom of a glass alongside a diamond, face down. Lift the glass up a couple inches, and shine a flashlight down on them vertically from above. Diamond has a dispersion of 0.44, while CZ's is 0.66, 50% more. You will see a circular pattern of light images under the stones which has been "streched out" into a rainbow spectrum. If one of the stones is a CZ, it's rainbow spectrum will be 50% longer, more "stretched out" than a diamond. The difference in look is obvious.
The Give It As An Engagament Ring Test
Give the stone in question to your fiancee as an engagement ring. If she throws it back in your face within 24 hours, it is a CZ... This is the most decisive test of all of them.
so there you go
Cubic zircon is 50% heavier than Diamond, not sure if you have any scales quite that accurate.
Diamonds /normally/ give off a blue glow under UV lights.
Diamonds car scratch sandpaper; most impersonators cant.
Diamonds wont hold heat, hold a soldering iron against it for 20 seconds, wait 5 seconds, is it still hot? if its cold, its a Diamond.
Diamonds have small imperfections or inclusions. But from what you've said the sample you have sounds too small to be able to tell.
Is it cut in any shape or is it a chip? Photo please!
Diamonds /normally/ give off a blue glow under UV lights.
Diamonds car scratch sandpaper; most impersonators cant.
Diamonds wont hold heat, hold a soldering iron against it for 20 seconds, wait 5 seconds, is it still hot? if its cold, its a Diamond.
Diamonds have small imperfections or inclusions. But from what you've said the sample you have sounds too small to be able to tell.
Is it cut in any shape or is it a chip? Photo please!
lord summerisle said:
sleep envy said:
give it a solid whack with a hammer, if it smashes it's paste
diamonds are the hardest thing known to man
ahh... but while diamonds are hard... they will shatter when hit like that diamonds are the hardest thing known to man
just ask Mizzy
FFS
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