Home Ask Arthur Is The Jade Pendant A Fake?

Is The Jade Pendant A Fake?


Is This Jade Genuine Or Fake

Last month my wife bought a jade bangle in Guangzhou costing her Rmb2,500 (around US$370.00). The seller start price for the bangle was Rmb5,000.  My wife bargained very hard for the bangle as it was very beautiful.  She knew from friends in China that the opening price of any stores in China was sky high.  The seller guaranteed the jade to be natural jade.  The woman seller then also included a green jade pendant as a free gift and she said was worth Rmn1,500 (~ $220).

My wife is wearing the bangle now.  I want to know whether is it worth it to make a gold clasp over it.  Thank you.

Charlie Y

Dear Charlie,

It is too good to be true that this piece of pendant is a free gift.  Genuine jadeite jade with this type of even green and translucency (even from the picture you can see its translucency) will command a very high price.

Most probably it is a composite material or high quality polymer plastic.  Rub it with your fingers (Read here) and see whether it heats up easily. Remember that this test is very primitive and only gives you some indication and not confirmation of whether your pendant is a crystal or plastic.

To send it to a gemlab for identification is too costly (at least US$100, depending on your locality) and to further put in money for a gold clasp is not worthwhile at all at this stage.

If you have any contacts with some school labs you can use ‘heavy liquid’ to do a quick test.

Heavy liquids are liquids with high Specific Gravities.  By placing the stone into a heavy liquid with a known SG you can observe whether your specimen sinks, suspends or float.  This will give you an indication on whether the SG of your pendant is higher, about the same or lower than the liquid.

For jadeite jade we normally use Methylene Iodide (CH2I2) which has an SG of 3.33.  (Read here for SG).  So when you drop your pendant into the liquid, you may have 3 scenerio as follows:

1) If your pendant sinks, then its SG is heavier than the Methylene Iodide and your piece is a Jadeite Jade.

2) If your pendant is suspended in the liquid then your piece is still Jadeite Jade.

3) However, if your pendant floats on top of the liquid then its SG is less than that of Methylene Iodide and your pendant is definitely not Jadeite Jade.

I will put up a post later on testing of gems by using heavy liquid.

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I am a Graduate Gemologist trained at the Gemological Institute of America (GIA) in New York City, USA. I hold an MBA degree from Cranfield University, United Kingdom, and a Bachelor degree in Mathematics. My earlier profession was a banker until I found jade in Myanmar (Burma) in the early 90s. I have traveled to the fabled Hpakan Jade mines, and Mogok, the world’s famous rubies and sapphires mines in upper Burma, with my second son. Three of my children are also Graduate Gemologist, GIA, NYC and they deal in diamonds, gemstones and jade. 我是在美国纽约市的美国宝石学院(GIA)接受过培训的宝石研究学家。 我拥有英国克兰菲尔德大学的工商管理硕士学位和数学学士学位。我以前的职业是银行家,直到90年代初我在缅甸接触到玉石。我曾经和我的次子一起去过缅甸上流传说中的哈帕翡翠矿山和莫谷矿山, 莫谷矿山是世界上著名的红宝石和蓝宝石矿山。我的三个孩子都是纽约市GIA毕业的宝石研究学家, 他们专门处理钻石,宝石和玉石.


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