Posts Tagged ‘jadeite’

Green Gemstones, Options For Green Gems.

Saturday, December 26th, 2009

Green Gemstone Options, About Green Color Gems

The color green has been very popular for decades, this not only for green gemstones. The word green is today related to environment conciousness and conservation too. It is therefore no surprise that many gem and jewelry lovers choose green stones for their jewels. In the next few paragraphs we will explain a few issues related to how you should choose a green stone.

When it comes to green stones, there are some common gems that are known to most gem buyers. Peridot and emerald are the most common green stones. Infact early in history, most green stones were considered to be emeralds. It was not just the ordinary man who got confused regarding the true identity of some green stones. Cleopatra was an avid lover of emerald stones, her collection included some of the most expensive jewels. And yet when the knowledge of gemology spread, it was found that many ‘emerald’ gems owned by her included peridot and not emerald!

Many people wear a birth stone ring, in this case there is not much you can do about green stone options. Emerald that we just spoke of is a variety of (green) beryl. It is also the birth stone for the month of May. An interesting thing about emeralds is that, they will also include inclusions and fissures. This natural occurence reduces the clarity of this green gem, it also reduces the durability of the gem by a certain degree. The other green stone peridot, can be a rich green or contain color tones of yellow. Peridot is the August birth stone and has better clarity and lustre as compared to emerald. It is also much cheaper than emerald but, cannot be called a cheap gem since prices are in the medium price range.

One very interesting green stone is bloodstone, it is a dark green jasper with a scarce springling of red spots. If you wondered why a gem stone that is dark green should be called a bloodstone, there is a very interesting answer to your query. The Christians believe that a piece of green jasper that lay at the foot of Lord Christ during crucifixtion, got stained with the blood  of the Lord. It was this belief that gave the stone it’s name. Though not a primary birthstone in modern birth stone charts, many charts list it as a March birthstone.

Jade is one more green stone and can include both jadeite and nephrite. A significant portion of the jade that you come across will have a green color. Most of the green jade is today dyed to enhance color. The color treatment is permanent and gives the stone a uniform green color. There is always a big debate regarding whether you should choose a natural green jade or a piece that has been dyed. The conclusion for this debate is quite simple and mainly involves the price factor. If you had to get a 4 carat green jade that was dyed, you might pay in the range of 20 U.S$ to 35 U.S$. Compare this to a jade piece that has not been dyed but, has the same color quality as the dyed piece. You could pay around 1,000 U.S$ to 1,500 U.S$ for the natural color stone. But if you wanted a green jade and did not worry about the color saturation or spread, then check an undyed green jade gemstone. You can find one in the 100 U.S$ to 200 U.S$ price range.

When it comes to green stones, it is often believed that these gems are not suitable for mens jewels. There is no technical reason for this, so some notes and suggestions are in order. If you need a mens ring with a green gem and do not want a bright green stone, bloodstone and green tourmaline might be a good choice. Green tourmalines have one advantage, it is a sturdy stone and will withstand daily wear and tear. The color is a very dark green and surely not bright.

The above suggestions are surely not the only green gems that you will come across. Your jeweler can provide more information but equip yourself with the information given in this article. You can then make the right queries and ask the right questions to allow you make the right decision. Australian Chrysoprase, demantoid garnet, tsavorite garnet, aventurine and green apatite are a few more names of gems with a green color. Get more information on green stones at http://www.directstones.com/green-gems-ds-th-01.htm

Jadeite Is Generally Dyed To Enhance Color. Nephrite Is Also Called Jade

Sunday, September 27th, 2009
Jadeite Has Tranluscence, Nephrite Is Generally Opaque.

Jadeite Has Tranluscence, Nephrite Is Generally Opaque.

Color Enhancement Of Jadeite. Provides Good Jade At Affordable Price.

The gemological world groups jadeite and nephrite in the category of jade. Jadeite is generally more transluscent as compared to nephrite. Much brighter colors of green can be observed in jadeite as compared to nephrite. The JDN001 jade shown above is jadeite that has been dyed to enhance color. The truth is that more than 80% of the jadeite that is used in jewelry is dyed for color enhancement. The dyeing process increases the color saturation of the stone and also ensures better uniformity of color. The treatment of gems for color and clarity enhancements are widely practised for many gems, not just for jade. 99% of the tanzanite gems that reach the gems and jewelry trade are heated for color enhancement. Over 95% of the emeralds used in jewelry are treated with natural oils to increase lustre and transparency.

So if we are willing to accept the dyeing of jadeite as a normal process, we need to discuss the issue of stability of the color for dyed jade gems. In the first place, we need to understand why dyeing is done for jadeite. To understand this we need to draw a reference to the pricing of jadeite. The JDN001 jadeite gem from Kaisilver has been handpicked and custom cut, it has also gone through a thorough testing process to ensure color stability. The gem is priced at under 10 U.S$ per piece. This is cheap considering the fact that a similar jadeite that is untreated would be priced at around 800 U.S$ to 1,200 U.S$ per piece! So dyed jadeite brings this romantic and soothing gem stone within the reach of many more gem and jewelry lovers.

But the very important thing that you should know is that not all dyeing processes are the same. Gemstone lovers have sometimes being given dyed jadeite that has faded or even changed to a yellowish green color. To ensure that Kaisilver jadeite is stable for color, we have devised some very stringent processes. These are done on every single jadeite that we use or sell. The first step involves checking the gemstone and ensuring that it is infact jade. If this has been proved, the gem is soaked in water for around 48 hours. The jadeite is then taken out and inspected for color change or fade, the water is also inspected to ensure that no water soluble dye has been used to treat the jade. In the next stage, a solution of water and household toilet soap is prepared. The jadeite gemstone is soaked in this water for around 12 hours. This is to simulate a situation where, a buyer could wash hands or even have a bath while wearing the jade ring or other jade jewel. Most of us take around 20 minutes to an hour to have a bath, the 12 hour soak is therefore more than sufficient. If the gem stone passes this phase, a more rigorous test follows. The jade is then kept in the sun for around 6 hours, the test is done to ensure that light and heat exposure from the sun does not cause the color to fade. Jade gems that pass all these testing conditions are selected and included in our stock. Most jewelers do not care to perform any of these checks, the quality of your gemstone can be ensured only by choosing the right jeweler.

Now what if you need an untreated jadeite gem? We can provide this for you too, expect the price to be in the range of 500 U.S$ to 1,200 U.S$ per carat. Such untreated gems will come with a lab certificate that states their authenticity and also the fact that they have not been treated. In the case of untreated jadeite do not expect to find high color uniformity unless the size that you need is in the below 7mm to 8mm category. Even green natural jadeite can show shades of white or brown. Get more details on the JDN001 jade stone and other gems at the DirectStones resource at http://www.jade.directstones.com/jade-jadeite-gemstones-01.htm