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| International Importers of Quality Gemstones – Specializing in Fine Faceted Colored Gemstones | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
___________________________ All That Glitters
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Gemstones - Diaspore (Color Change)
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| 4.04ct
Matched Pair - Diaspore |
| A
matched pair of this material is far more uncommon than even this rare
material. These 7mm squares are just back from our U.S.
cutter. This
is color changing Diaspore, but the color change is lighter due to the
size of these gems. Near a bright window or indirect outside light, they are a nice light green; under an office fluorescent, they are beige; under incandescent light, pinkish. Our favorite lighting condition is when there are two different light sources so the body color is green with peach highlights being reflected internally! Call or email us for price quotes. (turk-04c-01A) |
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| 8.95ct Rare Color
Changing Diaspore - Split Facet Long Cushion Faceted by a well known Master Facetor |
| Wonderfully
cut with a nice color change. A few inclusions under power, but
not
visible with the naked eye. This is to be expected within this
rare
gemstone. This was faceted by a cutter who has won cutting
competions,
and in one case, it was for cutting Diaspore. The photos have
been
color corrected to show what one sees under the appropriate
lights. As
a rule of thumb, this material behaves in the following manner: Office Fluorescent : Beige with Green over tones Indirect Daylight: Light to Medium Green Incandescent light: Variation of light to medium Pink Mixture of two lights: Body color isPgreen with wonderful peach hilights internally Call or email for price quotes. |
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| 26.25ct Rare Color
Changing Diaspore - Modified Opposed Bar Rectangle Faceted by a well known Master Facetor |
| An incredibly large
and
clean example of the rare gemstone. Under very bright lights, one
inclusion can be seen. This is to be expected
within this rare gemstone. This was faceted by a cutter who has
won
cutting competions, and in one case, it was for cutting Diaspore.
The
photos have been color corrected to show what one sees under the
appropriate lights. As a rule of thumb, this material behaves in
the
following manner: Office Fluorescent : Beige with Green over tones Indirect Daylight: Medium to Deep Green Incandescent light: Medium to Deep Pink, Red highlights Mixture of two lights: Body color is Green with wonderful Peach, Orange, Red hilights internally Call or email for price quotes. |
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4.68ct Color Change Turkish
Diaspore,
"Gone Askew Rhombus", faceted by Master Cutter and AGTA
Cutting Competion Award Winner.
This was photographed under diffused office fluorescent lights, with a small penlight illuminating the gemstone from above. The incandescent penlight gives the peach, orange, red highlights. Depending on the light source, one can see the following depending on those wavelengths available in those light sources: Office Fluorescent: Beige or beige-green Brinkman Fluorescent: Better green than above Diffused Daylight (by a window, under a tree, etc.): Shows the best Green under the lighting conditions tested Incandescent/spot: Bronzy Pink Contact us to learn more or for a price. (14.81x9.24x7.82x6.36mm) As seen in Cedar WIngs Magazine < Cedar Wings Article > |
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9.00ct Color Change Turkish
Diaspore,
"Compass Rose" Apex Cushion, faceted by Master Cutter and AGTA
Cutting Competion Award Winner.
This was photographed under diffused office fluorescent light with a fiber optic light source to the left. The main body color was a nice green and the flashes, as you can see, were pink, reddish and even peach! Office Fluorescent: Yellowish Green Brinkman Fluorescent: Deep Celery Green Diffused Daylight (by a window, under a tree, etc.): Wonderful green, similar to some Tourmaline Incandescent/spot: Bronzy Pink or Peach Note that the name of this cut comes from the ract that it does not have a flat table, but has numerous facts that create a cross or compass design. This gem has some inclusions which is typical of Diaspore. The cutting hides them nicely. Like natural Alexandrite, one must typically understand the material and know that color, size, cutting, inclusions and color change are usually a trade off. Contact us to learn more or for a price. (11.40 x 10.80 x 9.95mm) |
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1.83ct Diaspore
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| A nicely
faceted (in the
U.S.) Square Turkish Diaspore weighing 1.83cts. Color is a beigy
green, to light celery green to a light bronze. We love this
material when two different lighting sources are available - the body
color will be a version of light green and the highlights and flashes
will be peach! Email us for a price. See more Diaspores and
information on this rare gemstone, further below on this page. Approx 6.8x6.8x5.2mm SOLD! |
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1.19ct Turkish Diaspore, U.S. Cut.
This is the smallest stone that we have faceted so far.
When small, the color change is faint or non-existent. This
is a beige or light green color. Due to fine cutting, this will
sparkle nicely and is very pleasing. If one uses a loupe, one
can see an inclusion or cleavage - a characteristic of Diaspore.
We believe this is eye clean. Priced to move.
(turk-04-xx)
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| 2.17ct Super Cushion Barion Cut Diaspore | |
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This is a recently faceted
Diaspore just back from one of our U.S. Cutters. The color change
is very subtle, going from a yellow green to, well, we are really not
quite sure - perhaps a champagne color - it is very difficult to see
exactly what the color is because we are in the dark using two
different light sources. What we see under fluorescent appears to
be a yellowish green and under incandescent light, it does show a
change, only describing it is difficult. The pinkish photo above
is what the camera saw, but the human eye isn't really seeing this
intensity of pink. It is a lively greenish color under most
lighting conditions, clean, nicely cut and very well priced to move.
For someone who wants a Diaspore that is clean, decent size,
well, cut and at a good price, this will fit the bill, as they say.
Contact us via phone or email for a price quote
Approx 8.2x6.1x6.0mm |
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4.60ct Color Change Turkish
Diaspore,
Mixed 12 Main Brilliant Rectangle, faceted by Master Cutter
and AGTA Cutting Competion Award Winner.
This was photographed under office fluorescent light and there was another light source to the left. The main body color was a nice green and the flashes, as you can see, were pink, reddish and even peach! Though great looking under just fluorescent or incandescent light, we really enjoy seeing the unique coloring and optical effects when two light sources are available. Contact us to learn more or for a price. (11.2x6.38x7.05mm) |
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5.25cts Color Change Diaspore
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| Mixed Brilliant
Trilliant 10.81x10.81x10.81x7.17mm faceted by Master Cutter and AGTA Cutting Competition Winner (trv-05-01c) |
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6.50ct Color Change Diaspore
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| Uniquely Flash
Trilliant 11.45 x 11.45 x 11.45 x 7.92(d)mm faceted by Master Cutter and AGTA Cutting Competition Winner (trv-05-01b) |
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11.50cts Color Change Diaspore
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| Special Brilliant Cushion
with Apex Crown 14.15 x 10.33 x 10.11mm faceted by Master Cutter and AGTA Cutting Competition Winner |
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| 13.00ct Color Change Diaspore | |
| Unique
S u p r e m e
Rectangle 17.09 x 8.08 x 11.32(d)mm faceted by Master Cutter and AGTA Cutting Competition Winner |
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| 6.20ct
Color Change Turkish
Diaspore, Brilliant Diamond Cut Emerald, faceted by Master Cutter and
AGTA Cutting Competition Award Winner. 12.13x7.75.8.03mm This very gemstone represents faceted Color Change Diaspore in a book on gemstones! See more about this newly published book: < Gemstones - Understanding, Identifying and Buying > |
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22.75ct Diaspore!
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| 22.75ct Color Change
Turkish Diaspore, Step Cut Oval, faceted by Master Cutter
and AGTA Cutting Competition Award Winner.
17.58x14.16x12.45mm |
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| A - 4.75ct Color
Change Turkish Diaspore, Mixed 12 Main Brilliant Rectangle, faceted
by Master Cutter and AGTA Cutting Competition Award
Winner. 11.73x6.62x7.39mm |
| Eye Clean, the finest
cutting available, color change varies under different lights - these
are the optimum colors ranging from a tan/beige, to a variation of
green to a variation of bronze or pink. Call or email for
price quotes. |
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| B - 6.15ct Color
Change
Turkish Diaspore, Mixed Modified Long Cushion, faceted by
Master Cutter and AGTA Cutting Competition Award Winner.
13.68x6.81x8.23mm |
| Eye Clean, the finest cutting available, color change varies under different lights - these are the optimum colors ranging from a tan/beige, to a variation of green to a variation of bronze or pink. Call or email for price quotes. |
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| Diaspore
Crystal segment showing 3 views. One area has been polished
allowing one to see inside. 25.76cts $250 |
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| Diaspore Crystal segment showing 3 views. One area has been polished allowing one to see inside. 49.73cts $375 |
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| Diaspore
Crystal segment showing 3 views. One area has been polished
allowing one to see inside. 53.93cts $325 |
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| 16.95ct
Natural Diaspore Crystal measuring approximately 21x13x6mm Naturally terminated at the top; the sides have been polished so one can see in. This has the typical Diaspore inclusions, habit (crystal shape) and even cleavage planes. The first and last Diaspore crystal we displayed on our website over a year ago was snapped up by a collector from Japan. $449 SOLD! |
All That Glitters officially announces that we have
Diaspore. This material is not easy to work with and you can see
some of the challenges one has to deal with, listed below. This
rare and seldom seen gemstone is mostly unknown to gemstone dealers,
retail stores, those in the jewelry trade and even those in this
business for decades. They haven't a clue what the material
is when shown it nor have they ever heard of it when told the name -
and only a few dealers have ever seen it.
This material was on the market for a short timeframe back in the early 1990's. The person introducing it to the public and trade had telephoned us for information and advice. In about a year after our conversation, faceted stones of this material were being shown (pretty much for the first time) in trade magazines, featured in Modern Jewelers Gemstone Profile and a few pieces were being displayed by this dealer in about 1994 at the Tucson Show. It really hasn't been seen since that timeframe.
To quote Modern Jeweler - Until 1977, the idea that Diaspore might be a facetable gem was fantasy, not fact. Indeed, this common oxide-family member was not even popular in specimen form. So it's omission from the 1968 edition of John Sinkankas' Standard Catalog of Gems was to have been expected....."
We have looked in GIA books that one purchases for
obtaining a Gemology Degree - NOT LISTED.
We checked Walter Schumann's Gemstones of the World - NOT LISTED.
Gemstone Enhancements by Kurt Nassau - NOT LISTED.
We asked a dealer/cutter of gemstone if he knew of this gemstone -
NEVER HEARD OF IT.
Asked another dealer of fine stones - YES! She had heard of it
back in the 90's and always wanted to see it.
Made an inquiry to a person in the trade for decades and responsible in
the past for minerals/gem material being found in his country and he
now runs a cutting house - NEVER HEARD OF IT. Has no idea even how
to facet it.
We performed a search on the Internet - A Few Hits, but no real info.
More Wonderfully Faceted
Large Diaspores are availabe upon request. We will also custom
facet your gemstone to order!
Buy Now using your PayPal account: < Buy Now -
PayPal >
For purchases using another form of payment, please use our Purchase
Form.
You may also telephone or send an email.
—
"Wow, that's some nice looking stuff! Nope, I definitely didn't know what it was."—
"Thank you! Wonderful Diaspore and Tourmaline arrived from you."—
—
"Thank you so much for your reply. I will research that article in JCK You have helped me a lot on a difficult assignment. I could not find hardly any references for this material. I love your web site it is full of great information and extremely well done. Aloha."
© 2005 All That Glitters All Rights Reserved
Photographs are the Exclusive Property of All That Glitters and May Not
Be Reproduced Without Permission.
All That Glitters
272 Broadway #732
Methuen, MA 01844
Telephone/Answering Service: 978-975-2272
E-Mail: labrown@atggems.com
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