Gems that change colour under different lighting are rare and diapsore is attracting buyers drawn to this unique quality. Under natural or fluorescent light, diapsore has a kiwi green colour, with flashes of yellow. Diaspore displays a champagne color under incandescent lighting, and when exposed to subdued lighting, such as candlelight, it has a pinkish colour.
Diaspore deposits have now been found in a number of locations around the world, but thus far the finest gem-quality material has been mined in Turkey.
With Diaspore, the colour will vary in each lighting condition - all forms of incandescent, fluorescent, sunlight, indirect sunlight, etc. will produce variations in the colour. These images of the actual gem, display the optimum colour change.
Gem Type: Diaspore
Quantity: 1
Weight (cts): 1.34
Facet: Oval
Size(mm): 7.97 x 6.19
Depth(mm): 3.38
Colour: Yellow Green ( in daylight shade)
Clarity: IF
Origin: Turkey
Moh's Hardness: 5-6
Enhancement: None
GIA CLARITY SCALE FOR COLOURED GEMS IS USED
Guarantee: Descriptions are as provided by our suppliers. If you are unhappy with your purchase for any reason whatsoever, you may return it within 15 days of close of auction for a 100% refund of your winning bid.
*All gems sold by top drawer are listed as described by our suppliers, however as the majority of gem stones have undergone some form of enhancement, one should always assume treatments. For some varieties there is little difference between the values of enhanced, treated and natural gems. Exceptions such as ruby, sapphire and emerald,command high prices when untreated and are extremely rare. ( Be sceptical of claims that any of the above are untreated, especially on the internet. )
Buyers should also be aware that many of the quartz family of gems such as amethyst, citrine and ametrine are probably hydrothermal and/or have been subjected to heat or irradiation. This applies to topaz as well, which in addition is sometimes coated. In this, the lower end of the market, these treatments and processes do not markedly affect the value, look or durability of the gem, therefore the high cost of lab certification can not be warranted. However, if you are purchasing high end gems for investment purposes, you should have your gem lab certified. Certificates provided by the seller are generally not worth the paper they are written on and should be regarded with suspicion.
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