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osirisgems - handfaceted quality-gems:

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Leuco-Grossularite
 
Everybody knows the eastafrican polycrystalline  Hessonites with their glowing orange colour. This glowing is caused by numerously tiny crystals which were grown with no orientation. The same composition (Grossularite instead Grossulare!) happened here with this fine stuff from the Umba-Valley but without colour.
4.08 cts., 10.7 x 7.0 mm
available

 
Leuco-Grossularite from Umba-Valley, 4.08 cts.  



















 
 
Tanzanian Rhodolite
 
The 3rd hemisperical design from last week!
A near flawless dark-red Rhodolite from Tanzania with 130 facets and a 13fold base. It took me two days to facet and polish all these tiny facets.
But the result says clearly it was worth doing so!
7.49 cts., 10.0 x 10.2 mm
available

 
Tanzanian Rhodolite, 7.49 cts.  



















 
 
Arusha Tanzanite
 
After a while a new  Liquid Flower  Tanzanite  shows its superb reflections and play of blue, purplish and greenish light. Flawless clarity.
4.01cts., 10.3 x 6.3 mm
available

 
Arusha Tanzanite, 4.01 cts.  



















 
 
Sambia Amethyst
 
Another version of the Smoky Quartz design. Looks also like a "Diskokugel" with its 88 swirling facets.
25.50 cts., 17.5 x 16.8 mm
sold, this beauty has gone so fast!!!

 
Sambia Amethyst 25.50 cts.  



















 
 
Val Val Smoky Quartz
 
This is a new hemispherical design faceted on a perfect piece of Smoky Quartz from Val Val in Switzerland. A total of 99 facets stands for lots of sparkles to all directions. It belongs with its 11-sided shape to my prim number series, a kind of geometric with a completely different way of reflective properties.
14.08 cts., 14.5 x 13.7 mm
available

 
Val Val Smoky Quartz 14.08 cts.  



















 
 
Vatomandry Sapphire
 
Very unusual Sapphire from the Vatomandry region at the eastcoast of Madagascar. Any inclusions? Yes, some Rutile needles and sagenittic Ghost Rutiles. Small enough to be invisible to the naked eye, but visible under magnification to show its natural and untreated state. The colour is a mixture from green, blue & grey in daylight while incandescent light turns the colour more to greyish. A very special gem for the collector and maybe a challenge for the jeweller.
2.02 cts., 7.9  x 6.4 x 5.7 mm
sold

 
Vatomandry Sapphire, 2.02 cts.  



















 
 
Savannah Tanzanite
 
An eyeclean example of the super-rare Savannah Tanzanites. Faceted in my "Bar Square 3/4" design. with its slightly rectangulare shape. With no question one of the most beautiful colours in wide Tanzanite colour-range.
0.78 cts., 4.7 x 4.5 x 4.4 mm
available




 
Savannah Tanzanite, 0.78 cts.  



















 
 
Bleu de Auvergne-Sapphire
 
One of the super rare Sapphires from Massif Central region in the french Auvergne. Saturated greenish-blue (bleu-de-Auvergne) colour with highest possible clarity: a magnification of 45x won´t show the tiniest internals. Found it little creeks in this remote area of thousand volcanoes and extraordinaire cheese and sausages. What you see is the c-axis colour while the b- & c-axis colours are more greenish. BTW absolutely untreated in any way, no need for doing so after it´s such a beauty!!!
0.40 cts., 4.5 x 3.8 x 3.7 mm
sold

 
Auvergne-Sapphire 0.40 cts.  



















 
 
Ampanihy Pastel-Pyrope
 
My favorite gem since the Munich Show last year!
The Pastel-Pyrope from
Ampanihy in Madagascar in a round brilliant-type design from Lothar Reimschüssel
with some additional facets.
Light but strong saturated and soo lively!
0.78 cts., 5.5 x 3.7 mm
sold, but similar roughs are in stock
 
Ampanihy Pastel-Pyrope 0.78 cts.  



















 
 
Mambilla-Sapphire
 
Nice little Sapphire from Mambilla in Nigeria. Medium blue with some greenish aspects. Eyeclean with slightest haze of rutile silk. Just natural as it was found. Ezbar Square design with its flat crown.
0.46 cts., 4.2 x 4.2 x 3.1 mm
sold, but similar roughs are in stock

 
Mambilla-Sapphire 0.46 cts.  



















 
 
Chinese Black Spinel
 
Just black, the deepest imaginable black of the gemworld. The iron Spinel with its suberp shine and absolutely no transparency in a sligtly modified SRB-design.
5.94 cts., 10.7 x 7.5 mm
not available

 
Chinese Black Spinel / Pleonast 5.94 cts.  



















 
 
Tanzanian Rhodolite
 
Pure red and very big Rhodolite in my "Opposed Bar" version. Flawless and absolutely no colour change. Bought the rough this year at the Munich Show and was happy to find a rough Garnet with the perfect shape for this design.
8.91 cts., 17.1 x 6.7 x 7.5 mm
available

 
Tanzanian Rhodolite, 8.91 cts.  



















 
 
Mocambique Rhodolite

 
A big and beautiful dark red Rhodolite from Niassa in Mocambique.  There is a slight colour-shift from pure red to slightly magenta in incandescent light. Close to eyeclean with only some Rutil needles and here and there a tiny spot.
6
.27 cts., 13.0 x 8.8 x 8.3 mm
available




 
Niassa Rhodolite, 6.27 cts.
Niassa Rhodolite, 6.27 cts.
 



















 
 
Pink Pastel-Pyrope
 
A new kind of trillion faceted in a Pastel-Pyrope from Ampanihy in Madagascar. These Pink Garnets are usually small, have a light colour combined with a high saturation and so can show all its sparkling power. I purchased a little parcel from a wellknown dealer at the Munich Show last weekend (oct, 25-28th) and this is the first I have faceted from the new lot. Good clarity with a few Rutile-needles and a hovering Pyrite crystal-cluster at half past seven.
1.36 cts., 6.4 x 5.1 mm
sold





 
Pink Ampanihy Garnet, 1.36 cts.  



















 
 
7 Rutil-Quartzes
 
The  2018 theme for my collectors showcase are
"The Pleiades" a series of seven Rutil Quartzes made from a big sphere with frosted and glossy polished facets.
These gems looks a bit extra-terrestrial and share the same pavilion with different crowns. Due to the spherical frosted crown most crown facets are rounds or pitch circles. The third time I did this time consuming series.
Big pieces with weights from 24 to 42 cts.
available




 
Pink Ampanihy Garnet, 0.66 cts.  



















 
 
Dinnehotso Chrome-Pyrope
 
This is a very big example of Arizona´s Chrome-Pyropes. Usually these are soo tiny that it doesn´t makes sense to facet them. Here is a bigger one closed to one carat. The colour is a very saturated and pure dark red. Under the binocular it shows its characteristic internal life with oriented rutile needles and some structure-relicts from another mineral that was also turned into Pyrope, very fascinating!
0.91 cts., 5.1 x 4.5 mm
not for sale




 
Dinnehotso Chrome-Pyrope, 0.91 cts.  



















 
 
Tanzanian Tanzanite
 
Natural and untreated Tanzanite with strongest trichroism with green, bluish, purplish and bronze colours.
Eyeclean clarity.
1.92 cts., 9.8 x 4.6 x 4.8 mm
sold




 
Tanzanian Tanzanite, 1.92 cts.  



















 
 
Malawi Rhodolite

 
The biggest sevensided Tudor´s Kaleidoskop I have ever faceted (there is also the sixsided version). It is so hard to find a dealer with these big beauties in good quality with such perfect clarity and even not to dark.
No colour-shift.
25.60
cts., 17.3 x 13.2 mm
available




 
Malawi Rhodolite, 25.60 cts.  



















 
 
GDR Perowskite
 
This is one of the very rare manmade gems that were made by the labs of the former GDR, while natural Perowskite is usually to dark and not clean enough for faceting. This is a new design from Marco Voltolini : "Rectangulare Cushion" and it works great in this high RI stuff.
24.67 cts., 13.9 x 11.5 mm
sold but similar gem/rough is in stock



 
GDR manmade Perowskite, 24.67 cts.  



















 
 
Nigerian Topaz
 
     Very light blue Topaz from Nigeria with eyeclean clarity.    
3.81 cts., 11.4 x 5.6 x 6.4 mm
available




 
Nigerian Topaz, 3.81 cts.  



















 
 
Tanzanian Umbalite

 
The finest of all my Umbalites in all the last years!
Flawless, big, colour shifting & superbrillant, found in the Umba-region in north-east Tanzania.
The rough´s shape forced me to do the "Tudor´s Kaleidoskop" again as the most Umbalite roughs are
 roundish waterworn pebbles,
(from New Era, thanks Steve!).
11.33 cts., 13.3 x 9.8 mm
available




 
Tanzanian Umbalite, 11.33 cts.  



















 
 
Tanzanian Rhodolite

 
Medium red Rhodolite from Tanzania. Good clarity with some hard to find internals in Marco Voltolinis "Rectangulare Cushion" with an extra row of facets around the table. Beautiful stuff from this years fair in Sainte-Marie-aux-Mines.
3.59 cts., 8.5 x 7.1 x 6.7 mm
available




 
Tanzanian Rhodolite, 3.59 cts.  



















 
 
Arusha Tanzanite
 
Untreated trichroic (blue, purple and green) Tanzanite in a very pointed version of  the "Pelegrinischer Drache" design.
2.62 cts.
not for sale, sorry!



 
Arusha Tanzanite, 2.62 cts.  



















 
 
Auvergne Sapphire
 
From a new localitiy in the french "Massif Central" comes this spectaculare coloured Sapphire. The pic shows - as usual - the daylight colour (we call this colour "Bleu d´Auvergne") while incandescent light is just a small step softer and more grey. Absolutely eyeclean even a 40x magnification shows no internals. This beauty was faceted from a "yellow core"-crystal.
Hope to find more of this unbelievable stuff!
0.64 cts., 4.8 x 3.9 mm
sold



 
Sapphire "Bleu d´Auvergne", 0.64 cts.  



















 
 
Bolivian Citrine
 
A new Liquid Flower cut in an orange Citrine from Bolivia, was heated and is perfect clean with strong LF-pattern.
6.11 cts., 12.7 x 8.0 mm
sold



 
Bolivian Citrine, 6.11 cts.  



















 
 
Namibian Topaz
 
Colourless Topaz from namibians famous locality "Spitzkoppe". Some tiny internals but closed to invisible to the naked eye.
This is the trillion version of the "Cingili Mingili" design and adds the reflective power that is so typical for trillions.
18.14 cts., 15.9 x 11.2 mm
sold



 
Namibian Topas, 18.14 cts.  



















 
 
Hyazinth
 
Very fine example of the colour variety "Hyazinth" from Mananjary in Madagascar. Eyeclean clarity, strong dispersive and a colour with hues of red, cognac, brown, salmon...
2.85 cts., 8.5 x 6.0 mm
sold but similar gem/rough is in stock



 
Mananjary Zircon - Hyazinth, 2.85 cts.  



















 
 
Mocambique Tourmaline
 
A cross coloured Dravite-Tourmaline from Mocambique. The lighter colours in green and golden shows the a- and b- axes while the cognac-brownish colour is caused by the semi open c-axis.
"Bar Square 3/4! design.
3.16 cts., 7.9 x 7.3 x 7.3 mm
sold


 
Mocambique Tourmaline, 3.16 cts.  



















 
 
Savanna Tanzanite

Finest example of a savanna coloured Tanzanite. There are hues from orange, yellow, salmon over reddish to pinkish in this eyeclean gem. The reason is the strong trichroism and that this gem was rescued from getting heated. The highend precision cut  (the "Lighthouse of Porporela") helps to show the ultimate brilliance of this superrare  gemstone.
4.36 cts., 11.1 x 9.4 x 7.6 mm
sold

 
Tanzanite, Arusha, TAN, 4.39 cts.  



















 
 
Bekily CC-Garnet
 
Colour-change Garnet from Bekily in Madagaskar.
Lots of internals with a nice incandescent colour and a little of the Usambara-effect (means the bigger the gem is the more it is generally reddish, the smaller gems have the best cc.)
1.85 cts., 7.5 x 5.0 mm
available




 
Bekily CC-Garnet, 1.85 cts.
Bekily CC-Garnet, 1.85 cts.
 












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last update: Mittwoch, 11. November 2019 02:06 MEZ