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Lacquer Spraying a Jadeite Jade

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Lacquer spraying the surface of a jade piece is another type of enhancement that is commonly practiced among jade sellers, especially those selling jade pendants, bangles and figurines on road-side make-shift stores, under major bridges of cities and nook and corner back-lanes.

The lacquer used is mostly a type of olefin oil such as ethylene, which is also an alkene compound with only one C-C double bond.  It has a distinctly smell to it, like paraffin.

A closer up view of the jade piece showing the unpolished grooves

The most tedious work for a lapidary or jade sculptor is the final polishing of jade, whereby the jade piece is polished with very fine diamond paste or diamond sanding paper of fine grit to give the jade surface the shine and luster.  Pre-forming a jade piece, cutting a jade piece into a figurine stature or a motif pendant can be done quite easily in the hands of a dexterously master craftsman.  But the final polishing takes up time and requires a lot of passion and patience on the master craftsman.

An Excellent Jadeite Jade Carving of Cranes on Lotus Pond

The picture above is a carving of two cranes on a lotus pond.  The maximum width is about 10 inches and height is about 9 inches.  This is an intricately carved piece of Type A Jadeite Jade.  The pre-forming and the sculpture outlay may take a master craftsman 2 to 3 months, but the polishing part may take a much longer time.

Polishing a broad surface may be easy.  For jade carvings the crevasses, the grooves and the hollow-out part of the motif are the most difficult as these areas are small and hard to access with a small drill bit. Hence, a number of these are left as it is.

The unpolished grooves are well hidden by the oil of the lacquer spray

With the lacquer spray, the oil will hide the unpolished grooves as shown in the pictures.

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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.

8 COMMENTS

  1. Hi Eden

    Would post it in due time as I am gathering some material first.

    Thank you for your support

    arthur

  2. Hi Arthur, Thank you for replying to my post. I look forward to hearing from you as I look forward to receivinig daily emails from your blog.
    Eden

  3. Hi Eden

    You have made some interesting points and observations.

    I will put up a post together with some pictures on your mail.

    Will do it in due time.

    Thank you Eden for your support
    arthur

  4. Hi Ivan

    Lacquer oil will stay on the jade piece as long as you do not wash it thoroughly with soap and a brush.

    thanks again Ivan

    arthur

  5. I still wonder that how long does lacquer spray remain? I think the polishing matter is usually for the jade statue or carved jade, because it will decide the product’s price.

  6. Hi Arthur, I just love coming back to your site and find new updates about Jade. I’ve learnt so much from this site. It would be great if you can post some information regarding how to identify natural A grade jade from dyed or even worse fake jade. I recently came across a bangle that has fine translucent fibrous materials when viewed under thelight. The bangle is light to apple green colour but there are two parts on the bangle where the green is of brighter green compare to the rest of the bangle. I’m worried that these might be dyed or injected into the bangle. Also the fact that I can see spaces between the fibrous materials, does that mean the jade has been injected with something. The jeweller shop believe the bangle come from China although it looks to me more like burmese jade. They also say the bangle is natural and hasn’t been treated. How do I know for certain that what I’m getting is a good quality natural jade? I’m also concern that because they think it’s from china, that it could be nephrite instead of jadeitte. How do you tell the difference when looking at the internal structures under a light? I hope to hear your thought on this. Thanks.

  7. Your posts on jade are really very good. Can’t wait to read the sequence of it. what happen next? Did you do the deal? Pray tell us fast.

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