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Type A Jadeite Jade


An Imperial Emerald Cut Type A Jadeite Jade Pendant

As discussed in this post, Natural vs Enhanced Jadeite Jade, Type A Jadeite Jade is natural Jadeite Jade which has not been subject to any form of chemical treatment.  Traditional processes such as plum juice washing and some wax polishing is acceptable as these procedures are internationally recognized as standard practice and are not defined as ‘enhancement’ as the integrity and structure of the jade piece is still intact and has not been altered.

A Vivid Green Translucent Type A Jadeite Jade Bangle

Type A jadeite is for the connoisseur, the discerning and the true lover of jade. As natural jadeite is getting rare, possessing a piece of natural jade, even though it may not be a high quality one, would be like owning a piece of antiquity from mother nature.

A vivid Green Type A Jadeite Jade Pendant Which Lacks Translucency

Constant handling and wearing an untreated jade would enhance its appearance naturally over time. As natural jadeite jade is quite porous, wearing a piece of jade for a prolong period will enable the body sweat and oil to seep into the capillary veins of the jade giving it more luster and brilliance.  Hence, the Chinese belief that jade is a living stone has some relevance and familiarity to it.

A Vivid Green Translucent Type A Jadeite Jade, Back-Lit Against Diaphragm of Microscope

A family heirloom should be a Type A jade for it gets better with ‘age’ and wear.  Traditionally, it was a common custom for the daughter to inherit a jade bangle, a pendant or a hairpin from her mother when she was betrothed to a man by the family patriarch.  In modern China, jade is still the gemstone which is much valued and favored by the older generation, though diamond engagement ring is getting to be very popular.

Type A jade is a purchase for posterity as its beauty would transcend the present and its value would definitely appreciate. A natural jadeite carved and polished fifty years ago will still look as brilliant as it is today, its color still remains and it evokes fond remembrance for the person from whom the jade is inherited.

All Jadeite Jade jewelry pieces put under the hammer by international auction houses, notably Christie’s and Sotheby’s of Hong Kong, have been certified by a reputable gem lab to be natural jadeite jade. The most established gemological laboratory is the Hong Kong Jade & Stone Laboratory Ltd. (HKJSL) which was established in 1993 and is a joint venture between The Hong Kong Jewelry & Jade Manufacturers Association and the Jadeite Traders Industry & Commerce Association, which are both non-profit making organizations. Since the two associations are not directly involved in any trade transactions, testing and certification services are carried out in an absolutely independent and unbiased manner.  The Hong Kong Jade and Stone Laboratory is also recognized internationally by the World Jewellery Confederation, CIBJO (Confederation International de la Bijouterie, Joaillerie, Orfevrierie des Diamantes, Perles et Pierres), and has been designated as the Official CIBJO Registered Laboratory for Hong Kong.

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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.


  1. Hi Arthur,
    I’m also interested in this phenomenon. I’ve got a piece of jade which over-time looks like the internal structures has been ‘cracked’ (although no physical cracks or damages) and i can see fibrous veins forming and also the jade has become more transparent than before and I can see tiny white dots as well. My partner’s bangle also overtime has changed, the colour is brighter, but the inclusions inside the bangle looks like they’re breaking apart. What does this mean and why does it happens?

  2. Hi Ivan, thank you again for your comment.

    Yes constant wearing a natural JJ will improve the luster and even the translucency of the JJ because of the sweat and oil that seeps into the microscopic pores.

    I received a number of enquiries on why does a jade turns greener when it is being constantly worn.

    Will put up a post on this later.

    Thank you Ivan

  3. “Constant handling and wearing an untreated jade would enhance its appearance naturally over time.” – Can you post more about this matter?

    I have a friend, who are wearing a jade bangle for few years, his bangle’s color was whitish green but now it become greener and has an orange red area. So I’m really curious about this phenomenon.

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