Rare and Collector Gemstones For Sale by U.S.A. Gemstone Cutter

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Please order by Product Name and Stock Number with a minimal order of $20.00
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	Amethyst, light/medium purple, Portuguese oval, 19.5x32x14deep mm, 53.45 cts, EC, Halleleujah Junction, Nevada. Another great collector's stone I just finished from an old stash I had. From the world-famous locality at Hallelujah Jct. The amethyst form in sceptured quartz heads with smoky quartz, on smoky quartz stems, and can be quite large. This one is a nice medium pinkish purple, almost as nice as the one above. Would make a nice pendant or just to put away in your collection. Priced at only $20 per carat, but will consider offers. $1069.00 (Stock #AMPO-5345).
	Bastnaesite, medium golden-brown, Pakistan. 1.79 cts., 6x7.6 mm pear shape, VSI. Bastnaesite is a rare fluorocarbonate of cerium metals found in pegmatites in Russia, Sweden, Colorado, etc. The only gem material I am aware of comes from a recent find in Pakistan. $85.00 (Stock #BAGP-0179)
	Bastnaesite, slightly reddish-brown, Pakistan. 1.66 ct triad shape, 5.6x6.5 mm, EC. A rare mineral, and even more rare in facet grade. It has a hardness of 4.5. $166.00 (Stock #BABT-0166)
	Bastnaesite, brownish-gold, Pakistan, 6 stones @ approximately 1 ct each Nice, clean gems. We just got these back from overseas cutters: 2 ovals, 2 triads, 2 rounds. The six weigh 6.16 cts, so about 1 carat each. Rare-earth pegmatite mineral, rarely found in gem quality. Contact us for price if interested. (Stock #babt-6pieces)
	Beryllonite,, Minas Gerais, Brazil, light yellow, 7.20 ct oval, 10x13, SI. From an old stash. Rare collectors' sodium beryllium phosphate pegmatite gem mineral, uncommon color. Found in only a few places. Maine beryllonite is always colorless from what I've read. Occasionally something shows up from the Pakistan/Afghanistan region. Hardness 5.5-6, but it has several strong cleavages including one perfect one, which make stones a challenge to cut and polish. These rare gems usually have flaws, especially large ones. $1,440.00 (Stock #BNYO-0720)
	Clinohumite 0.42 ct each, two small stones, one a pear shape, one a triad shape. Color as above. Very rare as a faceted gem. The mandarin orange variety only comes from Tajikistan, and was part of a very small find around the turn of the century, and the first rough I have seen in about 10 years. It is a part of a mineral series, a basic silicate of magnesium, and contains fluorine, with a hardness of 6 to 6.5. Either one is priced at $100/ct or $42.00/each (Stock #CLOS-0042)
	Danburite, Charcas, Mexico. Portuguese cushion cut, 18.58 cts! Huge gem for your collection or wearing, 12 x 20 mm. VVSI. Hardness and appearance similar to white topaz, but probably tougher than topaz (no cleavage). It is difficult to find this material this large any more. $371.60 (Stock #DACC-1858)
	SOLD. Danburite, Madagascar, pale champagne. Portuguese oval cut, 16.99 cts! Huge gem for your collection or wearing, 10.5 x 14.3 mm. VVSI. Hardness and appearance similar to topaz, but probably tougher than topaz (no cleavage). It is difficult to find this material this large any more. $339.80 (Stock #DACO-1699)
	Danburite, Madagascar, portuguese cushion cut, 10.5 x 14.3 mm., hint of champagne.7.94 cts!, EC. Large gem for your collection or wearing. Hardness and appearance similar to topaz, but probably tougher than topaz (no cleavage). It is difficult to find this material this large any more. $158.80 (Stock #DACC-0794)
	Danburite, Madagascar, pulsar type cut,11.3 x 14 mm, 8.17cts., VVS Larger gem for your collection or wearing! Hardness and appearance similar to white topaz, but probably tougher than topaz (no cleavage). It is difficult to find this material this large any more. $163.40 (Stock #DACP-0817)
	Danburite, Madagascar, teardrop cut, 7.31 cts! 11.0 x 16.8 mm. VVS! Large gem for your collection or wearing. Hardness and appearance similar to white topaz, but probably tougher than topaz (no cleavage). It is difficult to find this material this large any more. $146.20 (Stock #DACT-0731)
	Danburite, Madagascar, 2.76 ct teardrop shape, 8.3 x 12.7 mm. SI $30.00 (Stock #DACT-0276)
	Danburite, Madagascar, 2.02 ct trilliant cut 8.8 mm, VVSI. $20.20 (Stock #DACT-0202)
	Danburite, Madagascar, 2.65 ct round, 9.0 mm.. VSI. $26.50 (Stock #DACR-0265)
	Danburite, Madagascar, 2.04 ct round, 9.0 mm, VVSI. $20.40 (Stock #DACR-0204)
	Danburite, Madagascar, 1.45 ct round, 7.8 mm, EC, $14.50 (Stock #DACR-0145)
	Diaspore, greenish-yellow, 1.82ct., pulsar, EC, 6.0x7.4mm, Turkey. Rare aluminum oxide gem, 6.5 hardness. Has a strong cleavage, but should be fine in a pendant or earrings. American cut. Sometimes advertised on TV as "zultanite". $182.00 (Stock #DIYP-0182)
	Diaspore, light greenish-yellow, 1.99ct., cut corner triangle, VSI, ~7.5x12mm, Turkey. Windowed, but otherwise nicely cut. Sometimes advertised as "zultanite". $199.00 (Stock #DIYT-0199)
	Enstatite, greenish brown, 0.62ct., oval, VSI, 4.7x6.8mm, Asia. A rare gem. Slight flaw in one end, otherwise clean. $31.00 (Stock #ENBO-0062)
	Enstatite, pale yellow, 1.06ct., pulsar, VSI, ~5x6mm, unknown locality. Rare gem material from E. Africa or the Orient. Hard enough for jewelry. $43.60 (Stock #ENYP-0106)
	Epidote, greenish brown, 3.88ct. (total), emeralds, SI, California. A fairly common hard mineral, but rare as a faceted gem. Strongly dichroic, these are dark greenish brown, and are clean to SI. Most facet grade material now comes from Pakistan. Buy all four or any of the pieces separately. Collector's item, how many have you seen from California? $30/ct. (Stock #EPBE-4pieces)
	Euclase, pale yellow, Brazil. A beryllium aluminum silicate, related to ordinary beryl in composition, but fairly rare. More difficult to cut because of a strong cleavage. Found mostly in Brazil, the Columbian emerald mines, and south-central Africa, the crystals somewhat resemble topaz. Three nice collector stones in stock: 1.17 ct rocker; Some internal chatter. $58.50 (Stock #EUYR-0117)
	Euclase, pale yellow, Brazil. 1.29 ct rocker. Deep cut, some internal chatter. $64.50 (Stock #EUYR-0129)
	Euclase, pale yellow, Brazil. 1.70 ct emerald cut. Some slight chatter. $100.00 (Stock #EUYE-0170)
	Fluorite, Colorado, nice minty green. 8.68 ct teardrop, 10.8x15.1 mm. SI. We believe this to be from Silverton, Colorado, but aren't 100% certain, as rough material was in stock for years before cutting. Collectors stone, too soft for regular jewelry wear. $86.80 (Stock #FLGT-0868)
	Fluorite, Colorado, emerald green. We have four of these, weighing up to 1.64 cts. These look for all the world like lighter colored true emeralds! Rare shade of green. All have some light inclusion. Note that fluorites are soft and fragile and do not make particularly good wearable jewelry. $50/ct. Contact us for sizes. (Stock #COFluorite)
	Grandidierite, Madagascar, 0.43 ct pear, strong aqua blue color A complex aluminum boron neosilicate containing iron and magnesium. One of the world's rarest gemstones! Not very many stones have been cut from this scarce and challenging materia and the large majority have inclusions of some sort. This stone has inclusion as well as an imperfect girdle line. Because of that it is priced below the going rate. $50.00 (Stock #GRBT-0043)
	Grandidierite, Madagascar. 0.35 ct emerald cut. Extremely scarce material. Seldom available as rough. Only comes from one locality. From the one rough piece, I cut two stones--this one and the one below. This stone is darker in color and much more transparent and clean than the stone above. Cut stones like this originally sold for thousands of dollars per carat. $500/ct or $175.00. (Stock #GRBE-0035
	Grandidierite, Madagascar. 0.19 ct emerald cut. Extremely scarce material. Seldom available as rough. Only comes from one locality. This piece cut two stones, including one above, and is darker in color and much more transparent than the 0.43 ct stone above. $500/ct or $95.00 (Stock #GRBE-0019)
	Kornerupine, greenish-brown, 2.16ct., oval, SI, ~6.5x8.5mm, unknown locality. A rare gemstone sometimes found in Sri Lanka or Africa, as well as a few other places. Not the most attractive of colors, like epidote. More of a collector's gemstone. Price reduced: $48.00 (Stock #KOBO-0216)
	Labradorite, (a.k.a bytownite) Feldspar, Luna, New Mexico. Light yellow cushion, 9.74 ct. I recently cut this from an old, small stash of material from this remote locality. Originally listed in the collecting literature as "Bytownite" feldspar, a very similar-looking material. These can only be separated by sophisticated optical testing equipment, and was recently proven to be labradorite. Regardless, it makes a great-looking gemstone when clear. Like all feldspars, it has a hardness of 6. $292.20 (Stock #LBYC-0974)
	Labradorite (a.k.a. bytownite), Luna, NM. 7.69 ct pulsar cut, 9.5 x 14.3 mm, VVSI. See above for detailed description. $192.25 (Stock #LBYP-0769)
	Labradorite, (a.k.a. bytownite), Luna, NM. 6.34 ct marquise cut, 10 x 18 mm, VSI. See above for detailed description. $158.50 (Stock #LBYM-0634)
	Labradorite (a.k.a. bytownite), Luna, NM. 7.70 ct teardrop cut, 10.2 x 17.5 mm, VSI. See above for detailed description. $192.50 (LBYT-0770)
	Montebrasite, pale yellow, 2.28ct., pear, VSI, 7.8x10.7mm, Minas Gerais, Brazil. Rare pegmatite gem seldom seen as a faceted gemstone. A close cousin to amlygonite. Good brilliance in this stone. $50.00 (Stock #MBYP-0228)
	Montebrasite, pale yellow, 3.22 ct designer pendeloque cut, EC, Minas Gerais, Brazil. Another example of a rare pegmatite gemstone. $60.00 (Stock #MBYP-0322)
	Orthoclase Feldspar. 4.95 ct, fancy rocker cut, 9.7x11.5 mm. SI New find from Tanzania. Rare color, has a light greenish-yellow hue. Interesting and unusual new material. $148.50 (Stock #ORGR-0495)
	Pollucite, colorless, 3.64ct., cushion, EC, ~8x12mm, Brazil. A rare colorless cesium silicate pegmatite mineral for collectors, but hard enough (6.5) for jewelry. $150.00 (Stock #POCC-0364)
	Pollucite, colorless, 2.46ct., oval, EC, ~7.5x10.5mm, Pakistan. A rare cesium silicate. A rare collector's stone hard enough (6.5) to set into jewelry. $93.00 (Stock #POCO-0246)
	Pollucite, colorless, 4.31 ct., oval, VSI, 9.2 x 14.8 mm, Pakistan. A rare cesium silicate. A rare collector's stone hard enough (6.5) to set into jewelry. $215.50 (Stock #POCO-0431)
	Pollucite,colorless, 5.03 ct., rhombic cushion, EC, 10.0 x 11.5 mm, Pakistan. A rare cesium silicate. A rare collector's stone hard enough (6.5) to set into jewelry. $251.50 (Stock #POCR-0503)
	Pollucite, colorless, 3.59 ct., oval, VVSI, 9.3 x 13.0 mm, Pakistan. A rare cesium silicate. A rare collector's stone hard enough (6.5) to set into jewelry. $143.60 (Stock #POCO-0359)
	Pollucite, colorless, 6.97 ct., round, VSI, 13.4 mm, Pakistan. A rare cesium silicate. A rare collector's stone hard enough (6.5) to set into jewelry. $348.50 (Stock #POCR-0697)
	Pollucite, colorless, 5.09 ct., oval, VVSI, 12.5 x 16.0 mm, Pakistan. A rare cesium silicate. A rare collector's stone hard enough (6.5) to set into jewelry. $254.50 (Stock #POCO-0509)
	Pollucite, colorless, 3.58 ct., teardrop, VVSI, 9 x 13 mm, Pakistan. A rare cesium silicate. A rare collector's stone hard enough (6.5) to set into jewelry. $143.20 (Stock #POCT-0358)
	Pollucite, colorless, 3.32ct., teardrop, VVSI, 8.5 x 13 mm, Pakistan. A rare cesium silicate. A rare collector's stone hard enough (6.5) to set into jewelry. $132.80 (Stock #POCT-332)
	Pollucite, colorless, 3.06 ct., round, VVSI, 10.3 mm, Pakistan. A rare cesium silicate. A rare collector's stone hard enough (6.5) to set into jewelry. $122.40 Stock# POCR-0306)
	Prehnite, neon yellow, 2.35ct., oval, EC but hazy, 8x10mm, Australia. A rare faceted gem from down under. Attractive lemony-neon yellow color. Is eye-clean, but like rose quartz has a bit of an inherent haziness, creating a warm glow. A collector's stone, but 6.5 on the hardness scale.. $52.25 (Stock #PRYO-0235)
	Pyrox-Mangite/Rhodonite, Brazil. An opposed bar-cut oval, 1.20 ct., INCL. These fragile manganese silicate gems are exceedingly difficult to cut due to very strong cleavage causing them to frequently splinter apart on even the finest of laps. This is a first and only example I have ever been able to complete. This one has some inclusions which prevent good brilliance, but the color is extremely nice! $240.00 (Stock #PMRO-0120)
	Rhodochrosite, Brazil. 2.07 ct emerald cut, with some inclusions. This has that great watermelon pink/red color that all fine rhodochrosite possesses. A very rare locality for rhodochrosite of facet grade quality, not very much rhodochrosite has ever been collected there in spite of Brazil's great gem resources. Rhodo is manganese carbonate and so only has a hardness of 3 on the Mohs hardness scale, which is very poor for ring stones. Often collected just for the rarity and color, but could be used for a pendant if you know a jeweler that could successfully set it without chipping. (Stock #RHPE-0277). $207.00
	Rutile, Minas Gerais, Brazil. 0.58 ct teardrop shape, EC. Deep metallic red color. $40.60 (RUBT0058)
	Scheelite, light yellow, 1.59ct., pear, VSI, China. Rare tungsten gem. Glows blue in a SW black light. $59.50 (Stock #SHYP-0159)
	Sillimanite, light grayish violet, 1.03ct., emerald, VSI, ~4x10mm, E. Africa. This rare material can be difficult to cut, and is an aluminum silicate related to andalusite and kyanite. Most of the material from Sri Lanka and the orient is brown colored. This piece had to be cut a bit shallow with a window. $57.25 (Stock #SIVE-0103)
	Sphalerite, green-yellow, 5.62ct., arrowhead, SI, ~8.5x12.5mm, Big 4 Mine, Kremmling, CO. Hard to find. Rare Colorado sphalerite (ZnS) in good size and clarity. These are soft stones, too soft for jewelry, but are highly sought by collectors. This lighter color is ideal to show off their high dispersion. $281.00 (Stock #SPGA-0562)
	Sphalerite, green-yellow, 3.09ct., triangle, SI, ~9mm, Big 4 Mine, Kremmling, CO. Rare greenish sphalerite (ZnS) from Colorado. This brighter color is more ideal to show off the high dispersion than the red or brown varieties. Soft, collector's stone only. $150.00. (Stock #SPGT-0309)
	SOLD. Sphalerite, green-yellow, 5.02 ct., oval, SI-I, 8.8 x 10.7mm, Big 4 Mine, Kremmling, CO. Rare greenish sphalerite (ZnS) from Colorado. This brighter color is more ideal to show off the high dispersion than the red or brown varieties. Soft, collector's stone only.Cut in Sri Lanka. $200.00 (Stock #SPGO-0502)
	Sphene, greenish-yellow, 0.57 ct teardrop, VSI, unknown locale. Good brilliance, fantastic dispersion, like a diamond or better. $35.60 (Stock #SNYP-0057)
	Sphene. Sometimes known as titanite, Pakistan, honey brown, 2.61 ct, pulsar cut, 6.7x8.5 mm. SI Has a slight flaw under the table, but unusual color, most faceted sphen you see on the market is greenish-yellow. $75.00 (Stock #SPBP-0261)
PLEASE NOTE: Much effort has been made in the attempt to get as accurate a picture as possible of our gemstones. Keep the following in mind while shopping: Cameras do not see color exactly the same as the human eye and lighting conditions often cause large variances. When taking pictures for the web, we have found that it is very difficult to capture the brilliance that the human eye sees and photos cannot often show all of the stones' ambiance and jewelry pieces' fine detail. Also computer monitors vary and often color tones are set to suit the viewer's preferences. When shopping, remember that "the pictures are meant as a rough guide only." All our products have a money-back guarantee (see terms above) so there is no risk in ordering from the Buena Vista Gem Works.

Collector and Rare Gemstones for Sale