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Agate
Item: 9876
Locality: Brazil
L: 4.50in
W: 4.00in
H: 0.25in
Weight: 115.00g
Polished Agate slice with deep orange-red color.   Both sides polished. ..
$65.00
Agate
Item: 9515
Locality: Chihuahua, Mexico
L: 2.25in
W: 1.00in
H: 0.90in
Weight: 0.00ct
Polished Agate section from Mexico's famous Agate state, Chihuahua. ..
$45.00
Agate
Item: 9755
Locality: Brazil
L: 3.50in
W: 3.50in
H: 2.25in
Weight: 0.00ct
Very fine polished Agate, with "god's eye."   Jack's collection, the first Agate he boug..
$125.00
Agate
Item: 4941
Locality: Coyomitas Ranch, Chihuahua, Mexico
L: 2.00in
W: 1.50in
H: 1.33in
Weight: 0.00kg
Cream colors in polished agate half with drusy center.   ..
$40.00
Agate
Item: 9801
Locality: Rio Grande do Sul, Brazil
L: 3.50in
W: 2.50in
H: 2.50in
Weight: 0.00ct
Polished Brazilian Agate with honey colors.  Nice table decor. ..
$45.00
Agate Stalactite
Item: 2330
Locality: Artigas, Uruguay
L: 4.00in
W: 2.50in
H: 0.25in
Weight: 0.00
Very fine design with crystal rim. Polished on both sides...
$75.00
Agate with Quartz Polished Stalactite cross section
Item: 7973
Locality: Artigas, Uruguay
L: 3.50in
W: 1.60in
H: 0.00in
Weight: 0.00ct
Bullseye of multicolored Agate with Flawless Quartz (pale amethyst color)  crystals radiating..
$55.00
Albite and Quartz
L: 4.00in
W: 2.50in
H: 1.75in
Weight: 0.00
Very sharp flawless quartz and smaller ones on matrix of well-formed albites that cover both sides o..
$65.00
Amazonite
Item: 1308
Locality: Afghanistan
L: 2.00in
W: 1.50in
H: 1.25in
Weight: 0.00kg
Translucent emerald green crystal with a little matrix, very rare locallity. ..
$85.00
Amazonite and Smoky Quartz
L: 4.00in
W: 3.00in
H: 2.00in
Weight: 0.00
Complete smoky quartzes with amazonites of medium color. Solid piece, no repairs. Collected by Nick..
$425.00
Amazonite with Albite and Smoky Quartz
L: 1.50in
W: 1.20in
H: 1.00in
Weight: 0.00ct
Aesthetic combination of  Amazonite, Smoky Quartz, and Albite.  Classic ..
$110.00
Amazonite with Smoky Quartz
Item: 9764
Locality: Lake George, Colorado, USA
L: 3.50in
W: 2.50in
H: 1.50in
Weight: 0.00ct
Best color Amazonites with small Smoky Quartz crystals.  Very dramatic specimen even at a dis..
$265.00
Amazonite with Smoky Quartz
L: 2.00in
W: 2.00in
H: 2.00in
Weight: 0.00
Very nice Smoky Quartzes on partial amazonite with good color...
$95.00
Amber with eight insects
Item: 1145
L: 0.00mm
W: 0.00mm
H: 0.00mm
Weight: 0.00ct
Small insects perfectly preserved in amber from the classic locality for amber. ..
$65.00
Amber with flying insect
Item: 1146
Locality: Baltic Sea
L: 1.00in
W: 0.00in
H: 0.00in
Weight: 0.00ct
Also has moveable water bubble inclusions trapped inside. Classic locality for amber, perfect flyi..
$85.00
Amber with Mosquito
Item: 1635
Locality: Chiapas, Mexico
L: 1.00in
W: 1.00in
H: 0.25in
Weight: 20.00ct
Beautiful orange Amber with mosquito clearly visible near the edge. ..
$110.00
Amblygonite with Eosphorite
L: 2.25in
W: 2.00in
H: 1.00in
Weight: 0.00
Nice partially gemmy blocky crystal of amblygonite with partial coating of brilliant eosphorites,cem..
$120.00
Amethyst
Item: 6993
Locality: Anahi Mine, Bolivia
L: 14.00mm
W: 12.00mm
H: 0.00mm
Weight: 10.28ct
Asscher cut bright purple Amethyst, eye clean.  10.28 carats $35/ct ..
$360.00
Amethyst
Item: 7577
Locality: Jalingo, Nigeria
L: 20.00mm
W: 17.00mm
H: 13.50mm
Weight: 24.39ct
Oval with deep Siberian color, from Jalingo, Nigeria, a rare locality.  These Amethyst have t..
$853.00
Amethyst
L: 3.00in
W: 2.50in
H: 2.00in
Weight: 0.00
Very fine specimen of 2 gemmy amethyst in altered quartzite matrix. Crystal has rare c-face and even..
$275.00
Amethyst
Item: 8419
Locality: Bou Oudi, Tata Province, Morocco
L: 15.00mm
W: 0.00mm
H: 0.00mm
Weight: 9.15ct
Siberian color trillion, excellent cut, clean to the eye. Some isolated metallic hematite threads ..
$366.00
Amethyst
Item: 1639
Locality: Artigas, Uruguay
L: 4.00in
W: 2.50in
H: 2.00in
Weight: 305.00g
Brilliant Amethyst crystals on matrix. ..
$35.00
Amethyst
L: 4.00in
W: 3.00in
H: 2.00in
Weight: 0.00ct
Deep purple crystals on calcite matrix. Unusual to find them in matrix in Maquar. ..
$185.00
Amethyst
L: 13.50mm
W: 11.50mm
H: 0.00mm
Weight: 7.00ct
Siberian color triangle cushion, tiny veil on bottom, not visible to the eye, 7.00 carats 40/ct. A..
$280.00
Amethyst
L: 15.00mm
W: 10.00mm
H: 0.00mm
Weight: 8.85ct
Deep reddish violet octagon, minor veils, Siberian color to the max.  8.85 carats $25/ct ..
$220.00
Amethyst
Item: 9206
Locality: Jalingo, Nigeria
L: 3.90in
W: 3.60in
H: 3.00in
Weight: 891.00g
From the collection of Dave Daniel, a long time client of Colorado Gem and Mineral Co, comes for s..
$4,300.00
Amethyst
Item: 9654
Locality: Minas Gerais, Brazil
L: 4.00in
W: 3.00in
H: 2.00in
Weight: 0.00g
Sharp Amethyst crystals with fantastic color on Agate matrix. ..
$90.00
Amethyst
L: 19.00mm
W: 16.00mm
H: 0.00mm
Weight: 17.31ct
Deep reddish purple oval, clean except for small patch of fog (unique to Four Peaks) if illuminate..
$519.00
Amethyst
Item: 9586
Locality: Artigas, Uruguay
L: 8.00in
W: 6.00in
H: 1.50in
Weight: 2.50lb
Thin plate of dark purple Amethyst crystals with undulating composition. ..
$90.00
Amethyst
Item: 9689
Locality: Artigas, Uruguay
L: 4.50in
W: 4.50in
H: 3.00in
Weight: 0.00g
Deep-purple Amethyst crystals with multi-colored Agate and interesting contours. ..
$65.00
Amethyst
Item: 4581
L: 11.00mm
W: 0.00mm
H: 0.00mm
Weight: 3.80ct
Four Peaks Mine, Maricopa County, Arizona, USA, Siberian color trillion, clean, 3.80 carats, $40/c..
$152.00
Amethyst
L: 24.00mm
W: 18.00mm
H: 0.00mm
Weight: 37.18ct
Perfectly cut cushion, 37.18 carats, excellent color, with very faint veil. $25/ct Very rare size ..
$930.00
Amethyst
L: 12.00mm
W: 9.00mm
H: 0.00mm
Weight: 0.00ct
Bright octagon with Siberian color, clean to the eye, 6.00 carats $40/ct K lot ..
$240.00
Item: 8302
Locality: Jalingo, Nigeria
L: 43.00mm
W: 39.00mm
H: 13.00mm
Weight: 28.78ct
Modified diamond step cut Amethyst from Jalingo, Nigeria with Siberian color.  Clean except f..
$863.40
Amethyst
L: 12.00mm
W: 0.00mm
H: 0.00mm
Weight: 7.86ct
Bright medium puirple Asscher cut Four Peaks Amethyst, faint veil, excellent cut 7.86 ct $20/ct&nb..
$157.00
Amethyst
Item: 9524
Locality: Artigas, Uruguay
L: 4.50in
W: 3.50in
H: 2.50in
Weight: 1.00lb
Brilliant Amethyst druse in a ridge formation with unlimited viewing angles. Beautiful decor piece..
$195.00
amethyst
Item: 1503
Locality: Nigeria
L: 1.38in
W: 1.13in
H: 0.25in
Weight: 0.00kg
One of our gemmiest fish, excellent carving that can be mounted in gold or silver as a pendant. ..
$65.00
Amethyst
Item: 1627
Locality: Artigas, Uruguay
L: 5.00in
W: 3.00in
H: 2.50in
Weight: 555.00g
Brilliant Amethyst crystals on beautiful Agate matrix, very aesthetic. ..
$95.00
Amethyst
L: 10.28mm
W: 0.00mm
H: 0.00mm
Weight: 3.46ct
Siberian color round, Moroccan, excellent cut.  minor veils under 10x   3.46ct  $35..
$121.00
Amethyst
Item: 7953
Locality: Artigas, Uruguay
L: 2.75in
W: 2.00in
H: 2.00in
Weight: 0.00ct
..
$45.00
Amethyst
Item: 1550
Locality: Jalingo, Nigeria
L: 0.00in
W: 1.25in
H: 0.00in
Weight: 0.00
Striking natural chevron color zoning in rare amethyst from Nigeria. Very fine object of art...
$120.00
Amethyst
Item: 1637
Locality: Artigas, Uruguay
L: 4.00in
W: 3.00in
H: 2.00in
Weight: 430.00g
Bright Amethyst crystals on matrix. ..
$30.00
Amethyst
Item: 4085
L: 20.00mm
W: 16.00mm
H: 0.00mm
Weight: 22.81ct
Bahia, Brazil, Custom cut octagon of flawless amethyst, perfect in all ways. 22.81 carats 30/ct ..
$685.00
Amethyst
Item: 9008
Locality: Bou Oudi, Tata Province, Morocco
L: 17.00mm
W: 14.00mm
H: 12.00mm
Weight: 16.33ct
Siberian color octagon (Barion cut).  Finest color, clarity, and cut possible. One of our top..
$735.00
Amethyst
Item: 8364
Locality: Bahia, Brazil
L: 22.00mm
W: 15.00mm
H: 12.00mm
Weight: 21.40ct
Siberian color, lots of red color Amethyst,  21.40 carat oval, well cut, eye clean.  $3..
$640.00
Amethyst
L: 19.00mm
W: 17.00mm
H: 14.00mm
Weight: 21.37ct
Very brilliant triangle cushion with reddish purple color, excellent cut, maximum light return.&nb..
$748.00
Amethyst
L: 15.00mm
W: 9.00mm
H: 0.00mm
Weight: 5.86ct
Bright reddish violet octagon, clean, excellent cut. 5.86ct $40/ct ..
$234.00
Amethyst
Item: 7515
Locality: Xobodobos, Gobobseb Mtns., Namibia
L: 19.00mm
W: 0.00mm
H: 0.00mm
Weight: 30.16ct
Fantastic color and cut on this Namibian Amethyst. Has tiny silvery threads of hematite as inclusi..
$1,206.00
Amethyst
Item: 9658
Locality: Minas Gerais, Brazil
L: 3.50in
W: 3.25in
H: 2.00in
Weight: 0.00g
Bright Amethyst crystals on colored Agate matrix. ..
$55.00
Amethyst
Item: 7519
Locality: Bahia, Brazil
L: 30.00mm
W: 26.00mm
H: 0.00mm
Weight: 74.18ct
Flawless oval, well cut. 74.18 carats, $35/ct 30x26 mm ..
$2,596.00
Amethyst
L: 15.00mm
W: 13.00mm
H: 0.00mm
Weight: 0.00ct
Reddish purple step cut octagon, faint veils and tiny inclusions deep in pavilion under 10x. ..
$444.00
Amethyst
Item: 9314
Locality: Artigas, Uruguay
L: 3.25in
W: 2.00in
H: 1.25in
Weight: 0.00ct
Curving Amethyst druse, brilliant and dark purple.  The best grade of Uruguayan Amethyst. ..
$55.00
Amethyst
Item: 1651
Locality: Artigas, Uruguay
L: 5.00in
W: 3.00in
H: 1.75in
Weight: 500.00g
Brilliant, deep-purple Amethyst crystals on Agate matrix. ..
$70.00
Amethyst
Item: 9668
Locality: Artigas, Uruguay
L: 4.50in
W: 3.00in
H: 3.00in
Weight: 0.00g
Sharp Amethyst crystals on thick, multi-colored Agate rim. ..
$60.00
Amethyst
Item: 4588
L: 22.00mm
W: 15.00mm
H: 0.00mm
Weight: 20.29ct
Four Peaks Mine, Maricopa County, Arizona, 20.29ct cushion, very bright with some red flashes, sli..
$406.00
Amethyst
Item: 8424
Locality: Bou Oudi, Tata Province, Morocco
L: 20.00mm
W: 15.00mm
H: 9.00mm
Weight: 14.25ct
Siberian color Amethyst oval, some minor veils hematite threads under 10x.  14.25 carats $30/..
$427.00
Amethyst
Item: 7747
Locality: Tata, Morocco
L: 1.50in
W: 0.80in
H: 0.50in
Weight: 0.00ct
Flawless doubly terminated crystal with purple color in each end, like a bowtie. thumbnail size. ..
$95.00
Amethyst
Item: 9469
Locality: Artigas, Uruguay
L: 3.00in
W: 2.50in
H: 1.50in
Weight: 0.00g
Sharp Amethyst crystals on matrix. ..
$25.00
Amethyst
Item: 6905
L: 14.00mm
W: 11.00mm
H: 0.00mm
Weight: 11.88ct
Fine flawless cushion cut Amethyst from classic locality. 11.88ct $40/ct 14x11mm ..
$474.00
Amethyst
L: 32.00mm
W: 23.00mm
H: 15.80mm
Weight: 53.49ct
Siberian color drop shape Four Peaks Amethyst. Has slight veil at deep in pavilion, but faces up c..
$1,604.00
Amethyst
Item: 8382
Locality: Bou Oudi, Tata Province, Morocco
L: 19.00mm
W: 0.00mm
H: 10.00mm
Weight: 18.74ct
Best possible color and clarity for this super round, very faint veils go along when nature does s..
$840.00
Amethyst
L: 10.00mm
W: 0.00mm
H: 0.00mm
Weight: 4.09ct
Beveled triangle, very well cut, medium color, excellent Four Peaks gem. flawless. 4.09 ct $40/ct ..
$163.00
Amethyst
Item: 9525
Locality: Artigas, Uruguay
L: 3.50in
W: 3.25in
H: 2.00in
Weight: 0.63lb
Beautiful Amethyst stalactite with a blue Agate core and endless display angles. ..
$175.00
Amethyst
Item: 9222
Locality: Artigas, Uruguay
L: 3.00in
W: 0.00in
H: 0.00in
Weight: 0.00ct
3 3.5 inch pieces of high grade Uruguayan Amethyst ..
$40.00
Amethyst
Item: 1643
Locality: Artigas, Uruguay
L: 6.00in
W: 3.00in
H: 3.00in
Weight: 1,070.00g
Outstanding, bright Amethyst crystals on thick Agate matrix.   One of our bes..
$175.00
Amethyst
Item: 9070
Locality: Rwanda
L: 22.00mm
W: 17.00mm
H: 13.00mm
Weight: 28.38ct
Extremely fine cushion with deep reddish purple color, Siberian color.  From the new discover..
$1,275.00
Amethyst
L: 10.00mm
W: 0.00mm
H: 0.00mm
Weight: 2.66ct
Four Peaks, Maricopa County, Arizona Checkerboard top round amethyst, 2.66ct, Siberian color, fro..
$235.00
Amethyst
Item: 9057
Locality: Bou Oudi, Tata Province, Morocco
L: 16.00mm
W: 16.00mm
H: 12.46mm
Weight: 0.00ct
Step cut hexagon with the finest color and saturation, not too dark, but full of purple fire. ..
$819.00
Amethyst
L: 27.00mm
W: 21.00mm
H: 14.00mm
Weight: 34.37ct
Triangle cushion Four Peaks Amethyst with brilliant cut and good color, clean to the eye.  Ex..
$687.00
Amethyst
Item: 6538
L: 2.00in
W: 2.00in
H: 2.00in
Weight: 0.00kg
Artigas, Uruguay, Ball of deep purple brilliant amethyst. Flower"" ..
$85.00
Amethyst
L: 37.00mm
W: 32.00mm
H: 16.00mm
Weight: 53.14ct
One of the finest Four Peaks we have cut, a flawless 53.14 carat cushion with excellent color, som..
$2,390.00
Amethyst
Item: 1633
Locality: Artigas, Uruguay
L: 2.50in
W: 2.00in
H: 2.00in
Weight: 255.00g
Brilliant, deep-purple Amethyst crystals on matrix. ..
$35.00
Amethyst
Item: 4503
L: 16.00mm
W: 13.00mm
H: 0.00mm
Weight: 10.40ct
Four Peaks Mine, Maricopa County, Arizona USA, Deep red (Siberian") triangle cushion 10.40 carats ..
$416.00
Amethyst
Item: 9105
Locality: Artigas, Uruguay
L: 2.00in
W: 1.50in
H: 1.50in
Weight: 0.00ct
Group of gemmy Amethyst crystals. Excellent quality, no matrix ..
$45.00
Amethyst
Item: 7579
Locality: Jalingo, Nigeria
L: 16.00mm
W: 13.00mm
H: 0.00mm
Weight: 11.63ct
Bright cushion with excellent color, characteristic tiny silver  metallic threads of hematite..
$232.00
Amethyst
L: 24.00mm
W: 14.00mm
H: 0.00mm
Weight: 0.00ct
Step cut baguette with reddish violet color, some zoning but this is like a little neon sign. ..
$287.00
Amethyst
Item: 9207
Locality: Artigas, Uruguay
L: 4.00in
W: 3.50in
H: 2.00in
Weight: 460.00g
Large gem deep purple crystals of Amethyst with rim of  multicolored Agate. ..
$110.00
Amethyst
Item: 9667
Locality: Minas Gerais, Brazil
L: 7.00in
W: 5.50in
H: 1.50in
Weight: 365.00g
Thin, beautiful plate of bright Amethyst crystals on matrix. ..
$195.00
Amethyst
Item: 8426
Locality: Bou Oudi, Tata Province, Morocco
L: 15.00mm
W: 13.00mm
H: 0.00mm
Weight: 9.91ct
Siberian color octagon, step cut, has characteristic hematite threads under 10x.  A fine gem...
$347.00
Amethyst
Item: 2742
Locality: Artigas, Uruguay
L: 7.00in
W: 5.00in
H: 2.50in
Weight: 2.20
Intriguing formation of stalactites. weight is 2.2 lb. shipping will be $8 in USA..
$55.00
Amethyst
Item: 7970
Locality: Xobodobos, Gobobseb Mtns., Namibia
L: 4.00in
W: 3.00in
H: 1.75in
Weight: 0.00g
Amethyst crystal on Rhyolite (volcanic rock) One termination has rough faces, but displays very we..
$85.00
Amethyst
Item: 1652
Locality: Artigas, Uruguay
L: 4.00in
W: 3.00in
H: 2.75in
Weight: 585.00g
Bright Amethyst crystals on multi-colored Agate matrix. ..
$70.00
Amethyst
Item: 9686
Locality: Artigas, Uruguay
L: 5.00in
W: 3.00in
H: 1.00in
Weight: 0.00g
Amethyst crystals with great color and luster on thin matrix. ..
$55.00
Amethyst
Item: 6736
Locality: Xobodobos, Namibia
L: 5.00in
W: 3.25in
H: 0.00in
Weight: 0.00
Pocket of gemmy, deep purple elongated Amethyst crystals...
$185.00
Amethyst
Item: 4587
L: 15.00mm
W: 0.00mm
H: 0.00mm
Weight: 11.31ct
Four Peaks Mine, Maricopa County, Arizona, 11.31ct square cushion, very bright with very slight li..
$452.00
Amethyst
Item: 9473
Locality: Brandberg Massif, Namibia
L: 2.50in
W: 1.50in
H: 1.50in
Weight: 0.00g
Amethyst/Smoky Quartz crystal with complex growth. ..
$60.00
Amethyst
Item: 6924
L: 14.00mm
W: 0.00mm
H: 0.00mm
Weight: 13.97ct
Maquar, Afghanistan, Square with checkerboard top, excellent color, bright in all lighting. Has ti..
$275.00
Amethyst
Item: 9025
L: 40.00mm
W: 21.00mm
H: 15.00mm
Weight: 63.63ct
Flawless elongated cushion, classic step cut top and bottom, 63.26  $5/ct! ..
$315.00
Amethyst
Item: 8383
Locality: Bou Oudi, Tata Province, Morocco
L: 18.00mm
W: 0.00mm
H: 10.00mm
Weight: 18.30ct
Another round of dazzling Siberian color, similar to 3832 in every way.  As good as Amethyst ..
$823.00
Amethyst
L: 14.00mm
W: 12.00mm
H: 10.00mm
Weight: 9.54ct
Octagon with crystal clear deep  purple with reddish flashes, Siberian color, clean to the ey..
$477.00
Amethyst
Item: 9529
Locality: Artigas, Uruguay
L: 4.00in
W: 2.50in
H: 2.00in
Weight: 0.50lb
Beautiful Amethyst druse in unusual rolling formation. ..
$75.00
Amethyst
Item: 1636
Locality: Artigas, Uruguay
L: 5.00in
W: 4.00in
H: 3.00in
Weight: 1,180.00ct
Large Amethyst crystal with smaller crystals on matrix. ..
$95.00
Amethyst
Item: 3236
L: 2.00in
W: 1.50in
H: 1.50in
Weight: 44.00g
The Four Peaks Mine, Maricopa County, Arizona produces amethyst that has often been recrystallized..
$65.00
Amethyst
Item: 4830
Locality: Para, Brazil
L: 12.00mm
W: 10.00mm
H: 0.00mm
Weight: 6.30ct
6.30ct finest wine red color of amethyst, very rare, flawless. with 10 pt diamond G-H SI1 in solid..
$650.00
Amethyst
L: 15.00mm
W: 12.50mm
H: 9.00mm
Weight: 10.57ct
Very fine Four Peaks gem, step cut octagon, clean to the eye, very bright with red violet color an..
$607.00
Amethyst
Item: 1212
L: 5.00in
W: 4.00in
H: 3.50in
Weight: 0.00kg
Bahia, Brazil, Very rare specimen of amethyst from Brejinha, a famous gem amethyst locality in Bah..
$475.00
Amethyst
Item: 9608
Locality: Brandberg Massif, Namibia
L: 2.00in
W: 1.50in
H: 1.50in
Weight: 0.00g
Beautiful, deep purple Amethyst crystals with parallel growth on matrix. ..
$125.00
Amethyst
Item: 7632
Locality: Morelia, Mexico
L: 4.00in
W: 3.00in
H: 2.00in
Weight: 0.00kg
Cluster of Amethyst crystals, phantoms of amethyst inside with colorless outer zone. From new prod..
$135.00
Amethyst
Item: 9727
Locality: Artigas, Uruguay
L: 12.50in
W: 8.00in
H: 3.00in
Weight: 9.00lb
Finest color brilliant Amethyst druse lining a geode section that has a polished Agate rim, on a c..
$535.00
Amethyst
Item: 4643
Locality: Gobobodos, Namibia
L: 2.00in
W: 1.25in
H: 0.00in
Weight: 0.00
Single gemmy amethyst crystal on matrix. Rare for the Brandberg area to have matrix specimens. very ..
$85.00
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