Angara
 

Diamond Jewelry Forums   Picture Gallery   Video Gallery   Journal

   
 Search Posted Today Most Active Help   
 » Home »  » Diamond Prices and Grading »  » Colored Stones »  » How to tell if pearls are real?


  

 How to tell if pearls are real?

P:  10/19/2004 6:23:36 PM  
elepri
elepri

Ideal Rock
Total Posts: 759
Last Post: 5/6/2006
Member Since: 6/29/2004
 
I impulsively bid on a string of pearls on ebay and won. I got it today and have no idea if they're even real or plastic. They were described as Akoya cultured pearls and I paid only $20 for it (including shipping and handling). Realizing that you get what you pay for, is it still possible that they're reall pearls? And how do you tell short of taking it to an appraiser? Thanks.

 


Posted:  10/19/2004 6:23:36 PM

 There are 8 replies to this message.  There are 8 replies on this page.

P: 10/19/2004 6:52:38 PM
Nicrez
Nicrez

Ideal Rock
Total Posts: 3,230
Last Post: 10/21/2009
Member Since: 1/21/2004
 
Well, short of taking it to an appraiser there are only a few test you can do to determine if they are plastic or pearl. Rub them together and there should be some dust that appears, but no scratches. Also pearl should be cool to the touch (touch to your lips, as they are MOST sensistive to warmth), and plastic should be room temp.

Consider that Akoya are cultured pearls, as are almost every single pearl on the market. You can tell quality of any pearl by how round they are, by how much Irridescence they have (rainbow shine) and even the amount of nacre there is (meaning the pearl excretion that makes up the white parrt of the pearl exterior we see)

Here's a link that can help explain these things a bit better:

http://www.gem.org.au/about/pearlbook.pdf

my guess is that they are Chinese freshwater strand, as Akoya pearls (which are Saltwater) tend to be MUCH more than $20...

"Sometimes it's OK to throw rocks at girls...as long as they sparkle! "

Nicrez, G.G., A.J.P.

Posted:  10/19/2004 6:52:38 PM
P: 10/19/2004 8:05:24 PM
Richard Sherwood
Richard Sherwood

Ideal Rock
Total Posts: 4,879
Last Post: 11/23/2009
Member Since: 9/25/2002
 
Rub them across the front of your tooth.

Pearls are calcium carbonate, and have a fine "gritty feel" when rubbed across the front surface of your teetch.

Imitations are glass or plastic, both of which slip right across the surface of your tooth.

Plastic feels very light, glass feels very heavy.

If you look at the drill hole with a 10x loupe, you should be able to see the demarcation point between the outer layer of pearl called nacre, and the inner bead used for the cultivation. This outer layer is usually only .25 to .75 mm thick.

Glass has a very thin painted layer visibile at the drill hole, and plastic has that characteristic plastic look.



Rich, Independent GG Appraiser
Sarasota Gemological Laboratory

Posted:  10/19/2004 8:05:24 PM
P: 10/20/2004 12:57:14 PM
elepri
elepri

Ideal Rock
Total Posts: 759
Last Post: 5/6/2006
Member Since: 6/29/2004
 
Nicrez and Richard,
Thanks for your advice. It does feel sort of gritty and cold. Guess i should get a loupe now.

Posted:  10/20/2004 12:57:14 PM
P: 10/20/2004 1:28:29 PM
DiamondLil
DiamondLil

Ideal Rock
Total Posts: 2,405
Last Post: 6/1/2006
Member Since: 6/8/2003
 

----------------
On 10/19/2004 8:05:24 PM Richard Sherwood wrote:

Rub them across the front of your tooth.

Pearls are calcium carbonate, and have a fine 'gritty feel' when rubbed across the front surface of your teetch.

Imitations are glass or plastic, both of which slip right across the surface of your tooth.


----------------

I had to laugh at this high-tech way of determining if pearls are real.  My grandmother told me the same thing about 20 years ago.  I wonder what my local estate dealer will say when I try this in his store.


 

DiamondLil ________________ "Diamonds are nothing more than chunks of coal that stuck to their jobs."

Posted:  10/20/2004 1:28:29 PM
P: 10/20/2004 7:11:50 PM
Richard Sherwood
Richard Sherwood

Ideal Rock
Total Posts: 4,879
Last Post: 11/23/2009
Member Since: 9/25/2002
 
DiamondLil, one time I did a quick tooth test on a pearl in front of a male client.

He looked at me for a moment, and said "I'll spare you the knowledge of where that strand last was."

Heh heh heh... Gave me pause.

Now I always scrub a pearl before giving it the tooth test.

Rich, Independent GG Appraiser
Sarasota Gemological Laboratory

Posted:  10/20/2004 7:11:50 PM
P: 10/21/2004 12:19:05 PM
canuk-gal
canuk-gal

Ideal Rock
Total Posts: 9,195
Last Post: 11/19/2009
Member Since: 4/19/2004
 
----------------
On 10/20/2004 7:11:50 PM Richard Sherwood wrote:

DiamondLil, one time I did a quick tooth test on a pearl in front of a male client.

He looked at me for a moment, and said 'I'll spare you the knowledge of where that strand last was.'

Heh heh heh... Gave me pause.

Now I always scrub a pearl before giving it the tooth test.
----------------



HI:

Whew--have many tabloid heiresses' ex-boyfriends as clients Mr. S??

cheers

Sharon

"People who possess great qualities, do not need to show off".

Posted:  10/21/2004 12:19:05 PM
P: 10/22/2004 5:25:03 PM
elepri
elepri

Ideal Rock
Total Posts: 759
Last Post: 5/6/2006
Member Since: 6/29/2004
 
Gee thanks, guess i should've cleaned it before the tooth test I actually took it to the jeweler down the street and he did the same exact test and nicely informed me that the thing was synthetic. What do i know... So i sent it back, now will see if i get my money back too. Guess i shoud've known better about ebay bargains.

Posted:  10/22/2004 5:25:03 PM
P: 10/24/2004 4:04:53 AM
Kamuelamom
Kamuelamom

Ideal Rock
Total Posts: 1,808
Last Post: 10/20/2006
Member Since: 4/18/2003
 
Haha, Rich, too funny! Hey, thanks for that explanation. I've always wondered too and even pondered a string of Akoya's once or twice from Overstock.com.

Posted:  10/24/2004 4:04:53 AM

 Previous Page Next Page 
« looking for purple sapphires - specific information «» Where does one start to learn about emeralds »
Next Topics
Colored gem experts in Toronto? Help a pauper brainstorm -- custom e-ring ideas New Sapphire Ring - Finished buying pre-concave-cut gems? Chatoyancy sapphire, NEED HELP!!! a very old German sapphire Nice but Cheap Concave Cuts? My Aqua from Wink and Richard Sapphire Bling 19K vs 18K? Palladium vs. nickel lustre? Plat? looking for purple sapphires - specific information Where does one start to learn about emeralds ???'s On Antique Opal Ring & Appraisal Colored gem cuts bottom-heavy? Please post cherrypicked.com experiences Need help learning about appraisals/grading What do YOU feel is an acceptable emerald enhancement Topaz or Citrine? Is Pearl a gemstone? Jewelers working with your stone: insurance issues? 20 questions regarding spinel as engagement stone Shiva Lingams, Agates and Carnelians Colour change Sapphire My Favorite Blues American Pearl or other pearl recommendations I would like to find a nice pair of sapphires Scenic Agate Calibrated Gemstones? padparadscha in white gold? ... Price ranges per carat for pink sapphire Having trouble finding spinels anywhere

Jump to:



Contact Us  |  Back Home  |  Privacy Statement  |  Forum Agreement  |  Forum Policies

Ideal BB Version: 0.1.5.4.beta1 Message forum software powered by  the Ideal BB

IdealBB Badge


Pricescope - Knowledge - Diamond Prices - Tools - Resources - About

© 2000-2009 Pricescope. Terms of Use Privacy Policy Disclaimer
forum archives