GEM MARKET INFORMATION

Gemval, an approved data supplier for the valuation data and pricing indexes for the Market News Service, International Trade Centre UNCTAD/WTO, Geneva, has historical data charts and graphs indicating Colored gemstones, in general, have appreciated 26% from July 2005 to July 2008.

As I have already mentioned Titanite has more fire than diamond, more colors than any gemstone, and it is extremely is rare to find it clean and of a light color. This latest limited supply from Africa is certainly special and suppases the best Pakistani Titanite.There is no indication on how long the supply will last.

It is unbelievable that the movie of the gemstone below was taken with the light of a flashlight (portable torch) some five or six feet distant.  But that is the unique nature of titanite.

So what rare gemstone has more fire than a diamond? And what rare gemstone shows vivid red, yellow and green under night light?

What is the most stunning gemstone to wear in the evening under distant artificial light?

What gemstone has similar color glow to a Rembrant painting?

Titanite! When you buy your first piece of Titanite just put it near (not too near) a candle or artificial and be absolutely amazed! Titanite has a rather unusual ability to take a distant beam of light and break it into all of the spectral colors, so that it will change color depending on the angle. Its dispersion, (fire,) is one of the highest of all gem materials and is higher than diamond. No collection of gemstones should be without a specimen of Titanite.

This lovely Portuguese cut, oval has all the factors above and is one of the best examples of Titanite that can be obtained.

What of Titanite as jewelry? Like tanzanite it is a little brittle and excels as  pendants, necklaces or earrings. Don't go out and frame houses with it in a ring! Like titanite, tanzanite, needs a closed setting ring.


Pieces:
One

Type: Natural Titanite





Color: gold,red,green,blue
Shape: Portuguese oval





Weight: 1.77ct.
Size: 8.12x6.70x4.45mm





Clarity: VVS - (GIA Type 3)
Luster: radiant





Enhancement: N
Origin: Madagascar

The movie below is worth a hundred  pictures and a thousand words. Detail from my painting 'white roses' completes the presentation.






   Incandescent light



1.77ct Finest Fiery Multi-Color

Oval Portuguese Cut Titanite

 








 



These photographs are extreme enlargements made by me under very bright lights with a macro lens so you can observe the gem's clarity, and of course, a magnification of any flaws. Monitors vary so I have little control over the color on your screen only to say these were made for a gamma corrected flat screen monitor with colors as close as possible to the original.

All gems have been inspected by a qualified gemologist and are guaranteed as natural. At Admiral Cowdisley I am committed to top customer service, and quality material. Email is encouraged with any questions. I will try to respond to email within 24hrs.

TITANITE

Titanite has a rather unusual ability to take a beam of light and break it into all of the spectral colors. So that it will change color depending which angle you are looking at it. Its dispersion, (fire,) is one of the highest of all gem materials and is higher than diamond.

Titanite is named from the Greek word for wedge, because of its typical wedge shaped crystal habit. It is also alternatively called titanite for its titanium content. Titanite can be cut as gems although it is considered a rarity on the gem market. It brings to the table a fire greater than diamond and unique color shades.Transparent specimens are noted for their strong trichroism, the three colors presented being dependent on body color.

Notable occurances include Gilget, Pakistan; Mt Vesuvius, Italy; Kola Penn., Russia; Ontario, Canada and New York and California, USA.

What of Titanite as jewelry? Like tanzanite it is a little bit brittle. It is best as a pendant, necklace or earrings. And don't go out and frame houses with it on. But as earrings and pendants (where the light can react with it best anyway) you will have no problems.

Titanite is the crystalline form of Titanium dioxide, also known as titanium(IV) oxide or titania, is the naturally occurring oxide of titanium, chemical formula TiO2. When used as a pigment, it is called titanium white. It is noteworthy for its wide range of applications, from paint to sunscreen to food coloring. Were the hydrogen collected, it could be used as a fuel to produce electricity when in nanoparticle form. Research suggests that by using these nanoparticles to form the pixels of a screen, they generate electricity when transparent and under the influence of light. If subjected to electricity on the other hand, the nanoparticles blacken, forming the basic characteristics of a LCD screen. According to creator Zoran Radivojevic, Nokia has already built a functional 200-by-200-pixel monochromatic screen which is energetically self-sufficient. No wonder Titanite glows as it does with spectral color!


 
 
GIA CLARITY GRADING USED BY COWDISLEY

Different gem labs grade clarity in colored gemstones differently. Cowdisley uses the GIA (Gemological Institute of America) Colored Gemstone Grading Scale. According to the GIA – perhaps the world’s best known and trusted Gem Association and Lab, there are THREE different charts for grading colored gemstones (and Diamonds). Perhaps the one that most jewelers are familiar with is the Type 1 Gemstone Chart, which includes the grading of Diamonds. The Chart that a gemstone is graded in is dependent on the physical characteristics of the majority of a particular gemstone; such as Ruby being graded as a Type 2.. The charts and the gemstones that fit into each are as follows:

 

  TYPE I
Usually eye clean
Aquamarine, Chrysoberyl, yellow and green, Heliodore, Morganite, Quartz, smoky, Spodumene, all Tanzanite, Tourmaline, green, Zircon, blue
TYPE II
Usually included
Andalusite, Alexandrite, Ruby, Sapphire, all,Garnet, all Iolite, Peridot, Quartz, ametdyst, citrine, ametrine, Spinel, all, Tourmaline, all but green, red and watermelon, Zircon, all but blue
TYPE III
Almost always included
Emerald, Red Beryl,Tourmaline: red and watermelon
VVS Minute inclusions, difficult to see under 10X. Eye clean. Minor inclusions, somewhat easy to see witd 10X. Usually eye clean. Noticeable inclusions under 10X. Usually eye clean.
VS Minor inclusions, somewhat easy to see witd 10X. Usually eye clean. Noticeable inclusions under 10X. May be eye visible. Obvious inclusions witd 10X. May be eye visible.
SI1 Easily noticeable witd 10X. Slightly visible to tde unaided eye. Usually low relief. Obvious inclusions, large or numerous under 10X. Apparent to unaided eye. Prominent to unaided eye.
SI2 Easily visible to tde unaided eye. Usually low relief. Obvious inclusions, large or numerous under 10X. Very apparent to unaided eye. Very prominent to unaided eye.
I1 Moderate effect on appearance or durability. Moderate effect on appearance or durability. Moderate effect on appearance or durability.
I2 Severe effect on appearance or durability. Severe effect on appearance or durability. Severe effect on appearance or durability.
I3 Severe effect on both appearance and durability. Severe effect on both appearance and durability. Severe effect on both appearance and durability.
Dcl
 
Not transparent Not transparent Not transparent

 



Gemstone Enhancement Codes
N F G H O T D HL
None Filling, Infilling or Stabilizing Irradiation Heat Enhancement Oiling/Resin Infusion Treated (berylium) Dyed Heat Enhancement/Lattice diffusion
 

The GIA nomenclature also specifies six levels of saturation ranging from "grayish" (neutral grey) to "moderately strong" to "vivid." The term "intensity" is also used to describe a stone's saturation.

Gemstone Saturation Chart

Gemstone Color Grading System - Saturation

To describe the darkness or lightness of a colored stone, the GIA system has nine levels of tone ranging from "very very light" to "very very dark." A numerical value is assigned to each label for use in a grading report.

Gemstone Tone Chart

Gemstone Color Grading System - Tone



«
Australian owned with US and Canadian Representation.
«
All Gemstones are Inspected and Photographed by Cowdisley.
«
Inspection and Return Policy after Seven Days.
«
Fluent English Speaking and Writing Customer Support.
«
Impartial Advice Regarding your Purchases.
«
Secure On-line Payments.
«
Fast and Secure Shipping Options.
«
Our Business relies on Customer Satisfaction.



Customer Satisfaction: If for any reason you are not completely satisfied with your purchase please send us an email stating your concerns and we will try to solve the probem. Returns are accepted for legitimate reasons within 7 days of delivery. Returns must be approved via email and an RGA (Return of Goods Authorization) code must be given prior to returning any item. Specific return instructions will be provided along with RGA code.