RARE COLLECTOR GEMSTONES (fall 2010 update)

RARE COLLECTOR GEMSTONES

With help from friends in the gem trade, we are proud to announce a renewed effort to offer collector and investment gemstones to our customers.

Over the last few years, we have been slowly buying out the old inventory of a longtime gem dealer, specializing in unusual rarities and interesting collector stones. Presented here are  125 gemstones selected from this stash, some dating back 20-25 years! A large number of Afghanistani and Pakistani pieces that were added in the 1990s broaden the scope of the suite, presented here.


US$    € EURO    ¥ YEN    £ POUND    CAN$    AUS$   

(click on a page number to go to that page:)

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RLKG10-252 - Fluorite - CAN$ 463
Argentina

thumbnail, 34.4 x 15.9 mm; 62.38 carats
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Fluorite from Argentina [db_pics/new2010/rlkg252a.jpg]
Fluorite from Argentina [db_pics/new2010/rlkg252b.jpg]Fluorite from Argentina [db_pics/new2010/rlkg252c.jpg]

Fluorites come in virtually all colors of the rainbow, and are some of the few gems that occur in multicolor stones. I've seen this type of Fluorite from China, but never from Argentina. The stone comes from a trusted source so I have confidence that it's genuine. The stone shows alternating purple, blue-green and golden-yellow color banding throughout. It's a very attractive gem with a standard "Emerald" cut. A beautiful, larger, multi-color Fluorite for any collector.


RLKG10-245 - Wulfenite (rare and bright) - CAN$ 1702
Tsumeb, Namibia

thumbnail, 9.3 x 5.1 mm ; 3.47 carats
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Wulfenite (rare and bright) from Tsumeb, Namibia [db_pics/new2010/rlkg245a.jpg]
Wulfenite (rare and bright) from Tsumeb, Namibia [db_pics/new2010/rlkg245b.jpg]Wulfenite (rare and bright) from Tsumeb, Namibia [db_pics/new2010/rlkg245c.jpg]

Wulfenite is one of the more difficult gems to obtain in the world. Typically most collectors see stones from Arizona or Morocco but when stones from Tsumeb are made available, they are snatched up immediately. This particular stone is nearly eye clean and has a fantastic light orange color with great dispersion! The colors inside this stone make it look like a Titanite or a Cerussite. To find a gem like this over 3 carats is rare these days. Most Tsumeb collectors would flip to own this gem. PLEASE NOTE: This stone does not look as good in the photos, as it does in person. It looks amazing under halogen bulbs, the colors just dance all over the place. This stone came to us with AN OLD dealer price tag of $2082 on it. A great quality stone for any collector.


RLKG10-251 - Sapphire (great color) - CAN$ 261
Vietnam

thumbnail, 5.0 x 4.1 mm; 0.50 carats
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Sapphire (great color) from Vietnam [db_pics/new2010/rlkg251a.jpg]Sapphire (great color) from Vietnam [db_pics/new2010/rlkg251b.jpg]

Sapphire is one of those gems that comes in virtually every color of the rainbow. With that said, the most recognizable color of Sapphires by far is blue, but pink Sapphires are some of the most vivid and recognizable gems in the world. I've seen literally every shade of pink known to man exhibited in Sapphires, and they are still some of the most popular, durable, colorful and highly sought after gems on the planet. This stone has an electric pink color, and hails from what is quickly becoming one of the premier areas in the world for these stones. The stone is virtually eye clean and has a standard "Oval" cut.


RLKG10-246 - Star Kyanite (very rare) - CAN$ 319
Nepal

thumbnail, 8.2 x 6.2 mm ; 2.10 carats
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Star Kyanite (very rare) from Nepal [db_pics/new2010/rlkg246a.jpg]Star Kyanite (very rare) from Nepal [db_pics/new2010/rlkg246b.jpg]

This gem is rarely seen in gem quality stones from anywhere in the world let alone in STAR gems like this! Kyanite is an exceptionally rare stone mostly occurring in Brazil as included pale blue to colorless gems. This "Oval Cabochon" cut stone is from Nepal and has a lovely light sapphire blue color, but the most interesting aspect of the gem is the fact that it shows a faint six-ray star when it is illuminated with a strong light. Despite our best efforts, the star is very faint in the photos, and is simply easier to see in person. I have to say that this is the first Star Kyanite gem that I have handled. A great rare collector's stone.


RLKG10-247 - Sodalite (Hackmanite) - CAN$ 479
Afghanistan

thumbnail, 11.5 x 6.4 mm ; 1.47 carats
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Sodalite (Hackmanite) from Afghanistan [db_pics/new2010/rlkg247a.jpg]Sodalite (Hackmanite) from Afghanistan [db_pics/new2010/rlkg247b.jpg]

Since this new find of Sodalite hit the market a few years ago, I have been quite impressed with the amount of relatively clean stones out there. Sodalite is a very durable stone and that's why it is so popular among dealers and collectors alike. The gem variety of Sodalite is Hackmanite and it is tenebrescent which is the process by which a mineral changes daylight color after being exposed to SW Light. This stone is very tenebrescent and also shows a good LW/SW Fluorescence. The stone fluoresces orange under LW and light orange under SW. The Hackmanite will turn a PURPLE color after being exposed to prolonged SW light and then will return to a lighter purple color after being exposed to prolonged daylight. This process is 100% repeatable and in no way hurts the stone. This "Oval Cabochon" cut gem has a light purple color, and it's definitely a larger stone for the material. The stone is only very slightly included, which is very difficult to find in this material, and make no mistake, this is a worthwhile collectors gem. This material is retailing for HIGH numbers now across the board, and I recently saw some stones that were priced at $400 per carat !


RLKG10-248 - Diamond (natural honey color) - CAN$ 192
Africa

thumbnail, 2.9 mm ; 0.09 carats
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Diamond (natural honey color) from Africa [db_pics/new2010/rlkg248a.jpg]Diamond (natural honey color) from Africa [db_pics/new2010/rlkg248b.jpg]

Diamonds occur in virtually every color of the rainbow (including black) and are prized for the extreme durability and fire. This particular stone has a honey color (with a golden overtone) and is only very very slightly included with a "Round" cut. The color in this gem is natural, which is rare in most colored Diamonds. It would fit nicely into a faceted Diamond suite.


RLKG10-249 - Aragonite (old, very rare size) - CAN$ 814
Bilin, Czech Republic

thumbnail, 19.3 x 13.2 mm ; 13.31 carats
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Aragonite (old, very rare size) from Bilin, Czech Republic [db_pics/new2010/rlkg249a.jpg]Aragonite (old, very rare size) from Bilin, Czech Republic [db_pics/new2010/rlkg249b.jpg]
Aragonite (old, very rare size) from Bilin, Czech Republic [db_pics/new2010/rlkg249c.jpg]Aragonite (old, very rare size) from Bilin, Czech Republic [db_pics/new2010/rlkg249d.jpg]

This is a super rare collector's stone. When is the last time that you can remember seeing a faceted stone of Aragonite? With the exception of the Czech specimens, Aragonite is rarely found in facet grade material. This is the old, classic European locale for the species and crystals from this location come up in old collections only infrequently. This was cut from one such old piece. This stone is a wonderful, very very slightly included gem with a "Pear" cut. These gems are very difficult to find these days, and stones this size are NOT common


RLKG10-250 - Grossular - CAN$ 122
Kenya

thumbnail, 8.7 x 5.7 mm ; 1.34 carats
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Grossular from Kenya [db_pics/new2010/rlkg250a.jpg]Grossular from Kenya [db_pics/new2010/rlkg250b.jpg]

Garnet comes in virtually every color of the rainbow. A few years ago, Mali was producing some very attractive light green Grossulars (along with yellow, golden and brown gems), but it seems as though this material has disappeared from the market in recent years. This stone looks very similar to the material from Mali, but came labeled to me as being from Kenya from a very reliable source. This gem is virtually eye clean and has a nice green color with a Pear cut. I think that this is a very underappreciated gem, and this color is not seen very often in Grossular so don't miss out.


RLKG10-243 - Amblygonite - CAN$ 192
Brazil

thumbnail, 9.0 mm ; 3.07 carats
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Amblygonite from Brazil [db_pics/new2010/rlkg243a.jpg]Amblygonite from Brazil [db_pics/new2010/rlkg243b.jpg]

Amblygonite is a relatively rare stone and is only found from a few localities in top gem material. Stone like this gem are highly sought after by collectors, and deeply appreciated by those who have experience with rare gems. This particular stone has a light straw-yellow color, and a "Step Cushion" cut. With the naked eye, I cannot see any inclusions in this gem, which is quite impressive for a stone this size. Amblygonite is too soft and brittle for jewelry, but these are not very common today in ANY size. This would make a great addition to any rare stone collection.


RLKG10-242 - Moldavite - CAN$ 378
Czech Republic

thumbnail, 10.2 mm ; 3.52 carats
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Moldavite from Czech Republic [db_pics/new2010/rlkg242a.jpg]
Moldavite from Czech Republic [db_pics/new2010/rlkg242b.jpg]Moldavite from Czech Republic [db_pics/new2010/rlkg242c.jpg]

Moldavite is often referred to as the "gem that fell to earth". This material is believed to have formed when a shower of meteorites fell in what is now the Czech Republich within a one hundred mile area around the Vltava River, which was once called the Moldau, and from which Moldavite gets its name. These stones are actually tektites and Moldavite is a one-of-a-kind tektite. There are many theories where Moldavite originated and the inability of science to resolve the issues with one conclusive explanation of the true origins of Moldavite causes it to remain one of the great mysteries of the gem world. Nonetheless, Moldvaite isn't often faceted into gems (usually it is left in it's original form or used for carvings - plus the very unusual form of the "rough" stones doesn't make for very good yield when it comes to cutting stones), and this is a very good size stone for this material. The stone has a "Square Checkerboard Cushion" cut, and would make for a beautiful piece of jewelry. The color in the stone is about as bright and rich as I have seen in Moldavite. There are some slight bubble inclusions, which is a good indicator that it is authentic, and not a synthetic simulant. It's a unique stone, and most collectors don't have one in their collections.


RLKG10-244 - Diopside - CAN$ 32
Tyrol, Austria

thumbnail, 5.0 x 4.0 mm ; 0.40 carats
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Diopside from Tyrol, Austria [db_pics/new2010/rlkg244a.jpg]Diopside from Tyrol, Austria [db_pics/new2010/rlkg244b.jpg]

Diopside is only found in a few localities in the world in gem quality material. Some of the best known are from Matala in Sri Lanka, the Italian Alps, and De Kalb, New York. I haven't seen many crystals of Diopside from Austria lately that were clean enough or thick enough to cut nice stones, but this one certainly qualifies as a great Diopside gem from this area. The stone has a nice bright green color. The gem has an "Emerald cut with slight inclusions.


RLKG10-241 - Labradorite - CAN$ 718
Mexico

thumbnail, 21.2 x 16.5 mm ; 19.90 carats
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Labradorite from Mexico [db_pics/new2010/rlkg241a.jpg]Labradorite from Mexico [db_pics/new2010/rlkg241b.jpg]

Labradorite is a fairly common Feldspar, but is still very attractive when faceted. Labradorite is found from various localities, but I always marvel as transparent Feldspar from any locality, especially in stones this size. This particular stone is an attractive, light straw color gem with an "Oval" cut. The stone is nearly eye cleanm and often Labradorite can have some kind of "shiller" which is an effect often seen in these gems, so the clarity in this gem is superb. A great, large, old time Mexican Labradorite stone, which would fit nicely into a gem Feldspar suite.


RLKG10-240 - Serpentine (Bowenite) (Chrome bearing) - CAN$ 755
Afghanistan

thumbnail, 17.0 x 6.7 mm ; 3.56 carats
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Serpentine (Bowenite) (Chrome bearing) from Afghanistan [db_pics/new2010/rlkg240a.jpg]Serpentine (Bowenite) (Chrome bearing) from Afghanistan [db_pics/new2010/rlkg240b.jpg]

This material is rarely seen in faceted stones, and even more rarely in 7 CARAT gems that are gem quality ! Bowenite is actually a variety of Antigorite which was first found in Italy. The name Serpentine is applied to a group of minerals and is not a valid species. This stone came to me labeled as being a chromium bearing gem, and it comes from a trusted source. The material is extremely rare in any quantity, but to find a stone with such great gemminess is really impressive. The stone is slightly translucent and has a rich emerald-green color in strong lighting. The gem has a "Rectangle" cut, and one of the corners has a bit of a white hazy appearance.


RLKG10-239 - Magnesite - CAN$ 181
Bahia, Brazil

thumbnail, 12.7 x 8.0 mm ; 3.52 carats
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Magnesite from Bahia, Brazil [db_pics/new2010/rlkg239a.jpg]Magnesite from Bahia, Brazil [db_pics/new2010/rlkg239b.jpg]

Magnesite is a relatively rare carbonate in the world except for the Brumado mine in Brazil. This material was originally mined and used as flux for making steel. The entire mountain in which the mine is located is just loaded with tons upon tons of large, gem grade crystals of Magnesite. Cut stones of this material are actually very attractive due to the birefringence which is starkly obvious in smaller stones. There truly is only one mine in the world that produces gems of this material, and most collectors probably don't have one in their collections. This stone is a very very slightly included with an Oval cut, and is a very good size gem of this material. This is a rare gem that is not often seen for sale in today's market.


RLKG10-236 - Enstatite - CAN$ 106
Sri Lanka

thumbnail, 8.40 x 5.11 mm ; 1.13 carats
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Enstatite from Sri Lanka [db_pics/new2010/rlkg236a.jpg]Enstatite from Sri Lanka [db_pics/new2010/rlkg236b.jpg]

Enstatite is a fairly rare collectors stone, and is not often seen in clean gems over 2 carats, so this is a good sized stone to be sure. This particular stone is a very attractive Enstatite with a lovely and rarely seen golden-peach color, which is exceedingly more rare than the typical brown gems. The stone is very very slightly included with a "Modified Shield" cut. A superb quality rare gem for any collector.



(click on a page number to go to that page:)

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 page 1 / 9  -  124 specimens selected  -  next  -  top  -  back to the Galleries 



Rob Lavinsky, rob@irocks.com

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